What term is used for an item that is an example of the function of making a polite request?

• A. Exponent
• B. Exemplar
• C. Sample
• D. Instance

Answer: (A)

In linguistics, the form that expresses a particular communicative purpose is called an exponent. So an item that serves as an example of the function of making a polite request is an exponent of that function. For instance, phrases like “Could you please…” or “Would you mind…” realize the polite-request function, making them exponents of that function.

The other terms describe general examples rather than the idea of a linguistic form realizing a specific function. An exemplar is a model or representative example, a sample is a subset used to represent a larger group, and an instance is a single occurrence. None of these specifically encode the idea of a form realizing a purpose like a polite request in language use.