morpheme

A meaningful linguistic unit that cannot be divided into smaller meaningful parts. The word man and the suffix -ed (as in walked) are morphemes.

The smallest unit of meaning of a language, which cannot be divided into smaller parts carrying meaning; it is usually smaller than a single wordform, such as the -ed morpheme of verbs in the past tense or the -s morpheme of nouns in the plural form.

The smallest linguistic unit within a word that can carry a meaning, such as “un-“, “break”, and “-able” in the word “unbreakable”.

minimal meaningful language unit; it cannot be divided into smaller meaningful units