Showing posts with label JL Austin. Show all posts
Showing posts with label JL Austin. Show all posts

Tuesday, September 3, 2024

Locution, Illocution, and Perlocution in Pragmatics

A key concept in pragmatics is the differentiation between locution, illocution, and perlocution. These three aspects of speech acts, first introduced by J.L. Austin in his seminal work "How to Do Things with Words", provide a comprehensive framework for understanding the complexity of human communication.


What is Locution?

Locution refers to the actual act of speaking—the literal words, sounds, and grammar used in an utterance. It’s the basic level of speech, focusing on the syntactic structure and semantic content of what is said. For instance, when someone says, "It’s cold in here," the locutionary act involves the production of the words and sentences that convey this idea. Locution is concerned with the propositional content—the explicit meaning—of the statement, making it the most straightforward aspect of communication.


Understanding Illocution

Illocution goes beyond the literal meaning of the words to consider the speaker’s intent. It’s about what the speaker is doing by saying something. The illocutionary act reflects the purpose behind the utterance. In our example, "It’s cold in here" might seem like a simple statement, but its illocutionary force could be a request (asking someone to close the window) or a complaint about the temperature. The illocutionary force is shaped by the context, including the relationship between the speakers, the situation, and shared knowledge. This layer of meaning adds depth to communication, as it encompasses the speaker’s intent and the function of the speech act.


Exploring Perlocution

Perlocution refers to the effect the utterance has on the listener. This is the result of the illocutionary act, which can be intended or unintended. Continuing with the example, when someone says "It’s cold in here," the perlocutionary effect might be that another person closes the window, offers a blanket, or simply acknowledges the discomfort. Unlike locution and illocution, which are centered on the speaker’s role, perlocution focuses on the listener’s reaction. It highlights how communication is not just about delivering a message but also about how that message is received and interpreted.


The Importance of Locution, Illocution, and Perlocution in Pragmatics

Understanding the distinctions between locution, illocution, and perlocution is essential for grasping the full complexity of human communication. These concepts help us appreciate how language functions in real-world interactions, influencing not just the immediate conversation but also the broader social dynamics. By recognizing the layers of meaning in everyday speech, we gain valuable insights into how language shapes our relationships, decisions, and social environments.


See also: Locutionary, Illocutionary, Perlocutionary Speech Acts


Sunday, September 1, 2024

The Meaning of Locutionary Acts Explained

In the study of linguistics and philosophy of language, particularly within the framework of pragmatics and speech act theory, the concept of a "locutionary act" plays a fundamental role. Coined by the British philosopher J.L. Austin in his work *"How to Do Things with Words,"* a locutionary act refers to the basic act of producing a meaningful utterance. It is concerned with the literal expression of words, including their phonetic, grammatical, and semantic aspects.


Definition of Locutionary Acts


At its core, a locutionary act is the act of saying something with a specific linguistic structure that conveys a particular meaning. This act involves three key components:

1. **Phonetic Act**: This is the act of producing sounds, the physical aspect of speech where vocal cords are used to articulate words. For example, when someone says "The cat is on the mat," the phonetic act involves producing the sounds that correspond to each word in the sentence.

2. **Phatic Act**: This refers to the act of forming words and sentences according to the rules of grammar and syntax. In the sentence "The cat is on the mat," the words are arranged in a grammatically correct order that conveys a coherent thought.

3. **Rhetic Act**: This is the act of using these words and sentences to convey a specific meaning or proposition. The sentence "The cat is on the mat" communicates the idea that there is a cat situated on a mat.


The Role of Context in Locutionary Acts


While a locutionary act focuses on the literal meaning of an utterance, it is important to recognize that context plays a significant role in how these acts are understood. The same locutionary act can have different interpretations depending on the situation, the speaker’s tone, and the shared knowledge between the speaker and the listener. For instance, the sentence "The cat is on the mat" is a straightforward statement in isolation, but it could imply something else if said in a specific context, such as pointing out the location of a missing pet.


 Locutionary Acts vs. Illocutionary and Perlocutionary Acts

It is essential to distinguish locutionary acts from illocutionary and perlocutionary acts, which are also part of Austin’s speech act theory. While a locutionary act is about the literal expression of words, an illocutionary act involves the speaker's intention behind the utterance (e.g., making a request or giving an order). A perlocutionary act refers to the effect that the utterance has on the listener (e.g., persuading or scaring them). Read more about Locutionary, Illocutionary, Perlocutionary Speech Acts


Sunday, March 5, 2023

Performative and Constative speech acts explained

The terms "performative" and "constative" speech acts were first introduced by the philosopher J.L. Austin in his book "How to Do Things with Words,". In this book, introducing speech act theory, Austin argued that many utterances are not simply descriptive or constative, but are actually performative, in that they are doing something in the world through language.


Performative speech act

A performative speech act is one in which the utterance itself is the action being performed. In other words, the speaker is not simply making a statement about the world, but is actually performing something in the world through their words. Examples of performative speech acts include making promises, giving orders, making apologies, declaring something and performing ceremonies such as marriage. The performative aspect of the speech act lies in the fact that the utterance is not simply describing an action, but is actually performing that action.


Constative speech act

A constative speech act, on the other hand, is one in which the speaker is making a statement that describes a state of affairs in the world. Is is a saying which states how the world is. Examples of constative speech acts include making assertions, describing objects or events, and providing information. The constative aspect of the speech act lies in the fact that the utterance is describing a state of affairs, rather than performing an action. However, constative speech act is bu no means powerless since it has the ability to shape our understanding of reality.

It is important to note that not all speech acts can be neatly categorized as either performative or constative. In fact,  many speech acts can have both constative and performative elements. For example, the statement "I promise to be there on time" contains both a constative element (the description of the promise) and a performative element (the act of making a promise).


Read more:

Monday, December 12, 2022

Types of Speech Acts Explained with Examples

Speech act theory is a branch of linguistics and philosophy that studies the ways in which words can be used to perform actions. This theory was developed by philosophers such as J.L. Austin and John Searle, and it has had a significant impact on fields such as linguistics, psychology, and communication studies. According to speech act theory, there are three types of speech acts: locutionary, illocutionary, and perlocutionary

A locutionary act is the act of saying something, and it is the most basic type of speech act. Examples of locutionary speech acts might include simply stating a fact, asking a question, or making a statement.

An illocutionary act is the act of performing an action by saying something. This type of speech act involves the speaker's intention to perform a specific action, such as making a request, issuing a command, or giving a warning. Examples of illocutionary speech acts might include saying "I request that you close the door," "You must leave now," or "I warn you not to do that."

A perlocutionary act is the act of achieving a certain effect through what is said. This type of speech act involves the speaker's intention to produce a specific effect in the listener, such as convincing them to do something, persuading them to believe something, or surprising them with unexpected news. Examples of perlocutionary speech acts might include saying "Please buy this product," "Believe me, I'm telling the truth," or "I have some exciting news to share with you."

Overall, speech act theory and the different types of acts provide a framework for understanding the ways in which words can be used to perform actions and achieve specific effects. This theory is important for fields such as linguistics, psychology, and communication studies, as it helps us to better understand how language works and how people use words to communicate with one another.




-
*This text was written with the aid of OpenAI’s GPT-3 model with modifications and editing by the author.

Saturday, July 10, 2021

How to Do Things With Words / J.L.Austin - detailed summary

How to Do Things With Words  is a work by John Langshaw Austin , published in England in 1962 (posthumous edition) from a series of lectures given in 1955 at Harvard University. From this book was born the theory of speech acts , which will give rise to contemporary pragmatic linguistics and the philosophy of ordinary language.

With this book, JL Austin continues the studies of Émile Benveniste , Karl Bühler , Roman Jakobson , Charles Bally , Bronislaw Malinowski, and Ludwig Wittgenstein . With an innovative and didactic working method, he develops his theories of speech acts in twelve lectures, differentiating two types of statements: the constative statement and the performative (or performative) statement. A statement is performative when nothing is stated or described but an act is performed. The performative is subjected to conditions of "happiness", depending on a situational (or circumstantial) context.

Throughout his studies, he realizes that constants also depend on conditions, so he extends the performative criterion to all statements. Therefore, it elaborates a taxonomy of the different ways we can have of “doing” something when saying something, divided into three categories: the locutionary act (saying something is doing something), the illocutionary act (when saying something we are doing something) and the perlocutionary act (because we say something we are doing something). It recognizes in the illocutionary act the essential act of the word, therefore it tries to establish a taxonomy of the different values ​​that the verbs of an illocutionary act can adopt.

Death prevents him from continuing his studies. John Searle , regarded as Austin's most direct successor, continues his investigations, re-examining the classification of illocutionary values. Austin's theories also receive two main criticisms: that of Dan Sperber and Deirdre Wilson, and that of John-Robert Ross , followed by George Lakoff .

Austin's method of work is innovative in every way. He calls his way of philosophizing "linguistic phenomenology." He does not consider the analysis of language as such, but as a philosophy that deals with language, in order to study phenomena. His method of analyzing language is based on trial and error, thoroughness, and concern for detail. It postulates observing language, distrusting it, disfiguring it, even disrupting it.

For this reason, the analyst must imagine new or unprecedented situations even when they are strange or extremely trivial. Taking the complete inventory of the possibilities of enunciations and exhaustive lists of speech acts allows to be in front of the “total situation”, apt to raise answers to the philosophical questions. You have unwavering and exclusive confidence in your method, even though it may seem laborious in the face of all the enunciation possibilities. For him, the uses of language are not infinite, therefore it is possible and necessary to establish a repertoire as wide as possible to arrive at an exact method. In that way, he opposes both philosophical abstraction and grammatical abstraction.



First Lecture 

The distinction between constative and performative statements 
Having observed that the grammatical category of "statements" is too broad, and is usually classified in the category of "pseudo-statements" - because they are not -, Austin concludes that philosophers often consider "that many expressions that they appear to be statements, or they are not formulated at all to record or provide direct information about the facts, or they serve that purpose only in part. 4 For this reason, it establishes differences between two types of statements: the constatative and the performative.

Verifying statements qualify statements that are only true or false, without "doing" anything. On the contrary, performative statements are neither true nor false, nor the expression of nonsense. They want to "do" something (gamble, get married, etc.) and often need to resort to an addition to the words themselves: this is what Austin calls the situational (or circumstantial) context.

Second Lecture 

When some circumstances are absent (for example, in the case of a marriage, if the statement "I declare you husband and wife" is uttered by anyone and not by the mayor), the performative statement does not become false, simply the act intended has not occurred. It may also have been fulfilled in bad faith (for example, if the person who is getting married says “Yes, I do”, when he does not want it), or it may not have appeared in its fullness.

When the action accomplished by a performative statement comes to fruition, it is called lucky. In the opposite case, it is called unlucky. Those concepts of lucky or unlucky performative statements are opposed to constative statements, which are true or false.

All the circumstances that cause the non-performance of the act are called "misfortunes." Austin classifies them according to the conditions to which they correspond.

Third and fourth Lectures 

At this point, Austin realizes that constative statements also depend on circumstances, and are often the same as for performatives. Therefore, you must look for other criteria to differentiate the constants from the performatives.

Fifth lecture

Select the grammatical criterion: “We would be inclined to say that every expression that is actually a performative would have to be reducible, expandable or analysable in such a way that a form in the first person singular of the present indicative of the active voice is obtained ( grammatical). " 5

Sixth and seventh lectures 

He realizes that the category of constants is very broad, and that, despite his attempts to differentiate them, many statements are both constants and performative, depending on the circumstances.

If there are no grammatical criteria, and no infallible tests that allow us to distinguish without any doubt the performatives from the constants, we must “start over”, posing the fundamental questions: “It is necessary that we reconsider in a more general way the meanings in that saying something can be doing something, or that by saying something we do something. "

Eighth lecture 

He solves his previous statements by dividing speech acts into three categories: the locutory,  illocutionary and perlocutionary act.

The locutory act 
Austin proposes, as a starting point, that an enunciation consists at least of a phonetic act - producing certain sounds -, a phatic act - enunciating certain words with a certain construction and with a certain intonation -, and finally a rhetic act - use these words in a sense, with a specific reference -. Those three acts allow us to say something, it is what Austin baptizes as the locutory act.

The illocutionary act 
The illocutionary act is a locutionary act, but it is an act performed by saying something. In other words, the locutionary act is only the act of saying something, while the illocutionary act can involve different uses of the same phrase, depending on how it is understood when it is pronounced (for example, depending on the context, saying "I'm cold" It can mean the wish that the interlocutor close the window, lend his coat to the speaker, be just information about my physical condition, etc.). It is the value attributed to the enunciation that founds the illocutionary act (order, statement, question, etc.)

This act must be produced in accordance with a convention. For example, if the act is a promise, the person who makes the statement "I promise you that" must be sincere, if not, the illocutionary act could not be carried out.

Austin realizes that almost all sentences can be considered as illocutionary, therefore he does not manage to define this category precisely. However, it recognizes in the illocutionary act the essential act of the word.

The perlocutionary act 
The perlocutionary act is carried out by saying something, the act produces effects or consequences on the interlocutor. Thus, contrary to an illocutionary act, the functions of language that have an indirect effect on the interlocutor (flattering, pleasing, frightening, etc.) are called perlocutionary but that are not explicitly inscribed in the statement.

Summary 
After having presented the three speech acts of the language, Austin summarizes the difference between the locutionary, illocutionary and perlocutionary act: “In a similar way we can distinguish the locutionary act 'said that ...', the illocutionary act 'held that ... ', and the perlocutionary act' convinced me that ... '”. The locutionary act has a meaning, the illocutionary gives a value to the fact of saying something, and the perlocutionary allows to obtain some effects thanks to the statement.

Ninth Lecture 

In this lecture, he underlines the need to distinguish the illocutionary act "by saying such a thing I was preventing it" from the perlocutive act "because I said such a thing I convinced him, or surprised him or restrained him."  Then, he examines the consequences of the two acts, and deduces that the essential difference between them is that the illocutionary act is a conventional act, while the perlocutory act is not. Therefore, the distinction is blurred, because it can be difficult to define where conventions begin and end.

Tenth lecture 

It takes into account two linguistic formulas: “when I said x I was doing y” or “I did y”, which corresponds to the illocutionary acts, and “because I said x I did y” or “I was doing y”, 9 which corresponds to the acts perlocutives. Although this test is not yet sufficient to distinguish the two acts, it can help.

Eleventh lecture

At this point, he finds himself confronted with the problem of the initial distinction between constative and performative statements, which is no longer valid, because the one and the other do not take into account the total linguistic act.

Twelfth lecture

It ends by establishing a taxonomy of the different values ​​that the verbs of an illocutionary act can adopt: the judicial (acquit, convict, etc.), the exercise (demote, command, etc.), the compromisory (promise, vote for, etc.) etc.), behavioral (apologize, thank, etc.) and expository (affirm, deny, etc.). He stresses that he is not totally satisfied with this taxonomy. Austin cannot finish his work, death will prevent him from continuing it. Searle is going to resume his program. It is considered as the most direct successor to Austin's theory.

Read more:

Tuesday, December 29, 2020

Best examples of perlocutionary acts

perlocutionary acts are the third aspect of speech acts classified by Jl Austin. perlocutionary  acts are not an integral part of the act itself performed by the speaker but rather refers to impression made on the listener. In other words, perlocutionary  acts are the affect achieved by the speech act. For example, when someone says “it is raining” the perlocutionary  part of the utterance will manifest itself if following that proclamation someone takes an umbrella with him.

 

To give another example sentence: in “don’t do that!” locutionary act is the meaning of the words, the illocutionary  act is the attempt to warn someone and the perlocutionary  act is that someone no doing that.

 

In order to give good examples of perlocutionary acts just think of the way an utterance affects someone. It is not the message denoted (locutionary), not the message conveyed (illocutionary) but the message as having some sort of impact on the receiver.

Examples of locutionary acts

Examples of illocutionary acts  

Summary of How to Do Things With Words by J.L.Austin 


know more:


  

Best examples of illocutionary acts

In JL Austin’s theory of speech acts, an illocutionary act is any utterance by which the speaker performs a certain action. Examples of such action can be an argument, a question, a promise, an order, an apology etc. in other words, an illocutionary act is the act performed by the act of speech.

 

The illocutionary act includes the locutionary act, for example the sentence “it is raining”. But it becomes an illocutionary speech act when it is performed for example in order to alert someone to the fact that it is raining outside, thus affecting his considerations or actions.

In other examples the illocutionary act can contradict the locutionary act. Take for example the statement: “I am dead tired”. The speaker does not mean the he is actually dead, but wants the listener to understand the he is extremely tired.

 

In order to give good examples of illocutionary acts take the meaning ingredient of a locutionary act and add the aspect of a receiver of that meaning, that is the object of the speech act.

 read further:

Examples of locutionary acts

Examples of perlocutionary acts

see also:  illocutionary force

Summary of How to Do Things With Words by J.L.Austin 

know more:


Best examples of locutionary acts

A locutionary act, or a locutionary speech act in JL Austin’s definition, is the part of an utterance which is the thing which is actually being said. In other words one can define as a locutionary act as the act of producing sounds that have meaning. Meaning is key here do explain Austin’s idea and to give examples, since a parakeet which calls “it is raining”, for example, does not perform a locutionary act since it does not understand the meaning of the utterance.

 

Good examples for sentences which are locutionary acts are any utterances which simply contain a meaningful statement about objects. For example: “the baby is crying” or “the sky is blue”. Other examples of locutionary acts can help us understand them is linguistic terms of meaning and reference. Such example sentences include: “there is a dog over there” or “Jack loves Jill”. Once again, in order to give a good example of a locutionary act you need to simply thing of a sentence that has meaning, and it is the meaning part of that sentence which is locutionary.

 

Other aspects of an utterance are the speech acts termed by Austin as illocutionary and perlocutionary acts, which will be covered with examples in the following links:

Examples of illocutionary acts   

Examples of perlocutionary acts

Summary of How to Do Things With Words by J.L.Austin 

In depth:

Tuesday, January 22, 2019

Indirect Speech Act - summary


In the course of performing speech acts we ordinarily communicate with each other. The content of communication may be identical, or almost identical, with the content intended to be communicated.
However, the meaning of the linguistic means used (if ever there are linguistic means, for at least some so-called "speech acts" can be performed non-verbally) may also be different from the content intended to be communicated. One may, in appropriate circumstances, request Peter to do the dishes by just saying, "Peter ...!", or one can promise to do the dishes by saying, "Me!" One common way of performing speech acts is to use an expression which indicates one speech act, and indeed performs this act, but also performs a further speech act, which is indirect. One may, for instance, say, "Peter, can you open the window?", thereby asking Peter whether he will be able to open the window, but also requesting that he does so. Since the request is performed indirectly, by means of (directly) performing a question, it counts as an indirect speech act.
Indirect speech acts are commonly used to reject proposals and to make requests. For example, a speaker asks, "Would you like to meet me for coffee?" and another replies, "I have class." The second speaker used an indirect speech act to reject the proposal. This is indirect because the literal meaning of "I have class" does not entail any sort of rejection.


Direct speech acts - summary


One subtype of speech acts is that of direct speech. A direct speech act is defined as one in which only the illocutionary force and propositional content literally expressed by the lexical items and syntactic form of the utterance are communicated. What this means, essentially, is that in a direct speech act, only necessary words and word-orderings are used to convey a message.
Brown and Levinson (1987: p.66) cite some common uses of direct speech:
a) Commands/requests. (e.g. Open the door please!)
b) Suggestions/advice. (e.g. You should not do that again)
) Expressions of disagreement or disapproval. (e.g. I do not agree with you)
However, because direct speech is employed for maximal efficiency, it is meant to satisfy a speaker’s desires, the addressee’s wants are sometimes overlooked, which may result in the addressee taking offence. Offending the listener is undesirable and can be construed as aggressive, while the purpose of speech acts is to gain compliance. Thus, direct speech is avoided when possible and supplanted by indirect speech (Brown & Levinson, 1987: p.60).



Illocutionary Force - Definition and explanation


Several speech act theorists, including Austin himself, make use of the notion of an illocutionary force. In Austin's original account, the notion remains rather unclear. Some followers of Austin, such as David Holdcroft, view illocutionary force as the property of an utterance to be made with the intention to perform a certain illocutionary act rather than as the successful performance of the act (which is supposed to further require the appropriateness of certain circumstances). According to this conception, the utterance of "I bet you five pounds that it will rain" may well have an illocutionary force even if the addressee doesn't hear it. However, Bach and Harnish assume illocutionary force just in case this or that illocutionary act is actually (successfully) performed. According to this conception, the addressee must have heard and understood that the speaker intends to make a bet with them in order for the utterance to have 'illocutionary force'.
If we adopt the notion of illocutionary force as an aspect of meaning, then it appears that the (intended) 'force' of certain sentences, or utterances, is not quite obvious. If someone says, "It sure is cold in here", there are several different illocutionary acts that might be aimed at by the utterance. The utterer might intend to describe the room, in which case the illocutionary force would be that of 'describing'. But she might also intend to criticise someone who should have kept the room warm. Or it might be meant as a request to someone to close the window. These forces may be interrelated: it may be by way of stating that the temperature is too cold that one criticises someone else. Such a performance of an illocutionary act by means of the performance of another is referred to as an indirect speech act.


Definitions of illocutionary speech act

Many define the term "illocutionary act" with reference to examples, saying for example that any speech act (like stating, asking, commanding, promising, and so on) is an illocutionary act. This approach has generally failed to give any useful hints about what traits and elements make up an illocutionary act; that is, what defines such an act. It is also often emphasised that Austin introduced the illocutionary act by means of a contrast with other kinds of acts or aspects of acting: the illocutionary act, he says, is an act performed in saying something, as contrasted with a locutionary act, the act of saying something, and also contrasted with a perlocutionary act, an act performed by saying something. Austin (1975: p.123) eventually abandoned the "in saying" / "by saying" test.
According to the conception adopted by Bach and Harnish in 'Linguistic Communication and Speech Acts' (1979), an illocutionary act is an attempt to communicate, which they analyse as the expression of an attitude. Another conception of an illocutionary act goes back to Schiffer's book 'Meaning' (1972: p.103), in which the illocutionary act is represented as just the act of meaning something.
Based on their essential conditions, and attending to the minimal purpose or intention of the speaker in performing an illocutionary act, Searle (1975) proposes a taxonomy of illocutionary acts into five mutually exclusive and jointly exhaustive classes:
·       Representative or assertive. The speaker becomes committed to the truth of the propositional content.
·       Directive. The speaker tries to get the hearer to act in such a way as to fulfill what is represented by the propositional content.
·       Commissive. The speaker becomes committed to act in the way represented by the propositional content.
·       Expressive. The speaker simply expresses the sincerity condition of the illocutionary act.
·       Declarative. The speaker performs an action just representing herself as performing that action.

See also:

  

what are speech acts? - summary

To produce an utterance is to engage in a certain kind of interaction. This is a fact that, until recently, logicians and philosophers of language have tended to overlook thought it has been stressed by linguists, psychologists, sociolinguists, and anthropologists. One of the most features of the theory of speech act, which was introduced into the philosophy of language by J. L. Austin, is that it give explicit recognition to the social or interpersonal dimension of language behaviour and provide a general framework for the discussion of semantic and syntactic distinctions that linguists have traditionally described in terms of mood and modality (in Lyons 1977:p.725).
Austin criticizes the view that the main purpose of sentences would be to state facts or to describe some state of affairs as either true or false. He argues against, which retains the view that the only meaningful statements are those that are verifiable (Austin.1976: p.2). Instead, Austin claims that such truth-evaluable sentences only constitute one type of utterance, pointing out that there are other types of utterances which are neither true nor false, but nonetheless meaningful. He calls this second type of utterance "performative". Performatives are used to carry out an action. In that they differ from other types of declarative sentences (constatives) which only describe the world (constatives) in systematic ways. On the syntactic level, however, both performatives and constatives take the grammatical form of declarative sentences. Austin revises his theory considerably in the course of his lectures and eventually replaces the dichotomy ‘performative’ vs. ‘constative’ with a more general theory of speech acts which regards every utterance as a type of action.
Lyons (1977) which is cited by Nitiasih shows that there are two characteristics of speech act, they are:
1)    Speech act does not refer to the act of speaking as such (i.e. to the production of actual spoken utterance), but to something more abstract.
2)    Speech act is not restricted to communication by means of spoken language because there are also certain non-linguistic communicative acts conveying certain meanings.
Speech act can be analysed on three levels. In Austin’s further development of investigating about speech act, he drew three dictinctions between Locutionary acts, Illocutionary acts, and Perlocutionary acts as the following:
1)    A Locutionary Act is an act of saying; the production of meaningful utterance, the utterance of certain noises, the utterance of certain words in a certain construction, and the utterance of them with a certain ‘meaning’ in the favourite philosophical sense of that word, i.e. with a certain sense and a certain reference (Austin 1962: p.944 as cited by Lyons 1977: p.730). see examples of locutionary acts.
2)    An Illocutionary Act is an act performed in saying something; making a statement or promise, issuing a command or request, asking a question, christening a ship, etc. see examples of illocutionary acts.
3)    A Perlocutionary Act is an act performed by means of saying something; getting someone to believe that something is so, persuading someone to do something, moving someone to anger, consoling someone in his distress, etc. see examples of perlocutionary acts.
A short illustration example of the relationship between those three acts above can be seen as follows:
In uttering the locution "Is there any salt?" at the dinner table, one may thereby perform the illocutionary act of requesting salt, as well as the distinct locutionary act of uttering the interrogatory sentence about the presence of salt, and the further perlocutionary act of causing somebody to hand one the salt.