A speech act function refers to the purpose or intention behind a speaker's utterance in communication, such as making a request, giving an order, or expressing an opinion. Understanding these functions helps analyze how language is used not just to convey information but also to perform actions, which is crucial for a formal semantic analysis of natural language sentences. This concept emphasizes the relationship between meaning and context, illustrating how what is said can significantly depend on the speaker's intent and the situational context.
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