Which term refers to the smallest language unit that has meaning?

A) morpheme
B) phonology
C) letter
D) symbol

Morpheme

The smallest grammatical unit in a language that carries meaning, for example, "s" in dogs to denote plurality.

Phonology

The study of the sound system of languages, including the rules for combining and producing sounds to form meaningful words and sentences.

Letter

A written, typed, or printed communication, typically enclosed in an envelope and sent by mail.