Lexeme

A lexeme is an abstract unit of morphological analysis in linguistics, that roughly corresponds to a set of words that are "the same" in basic meaning. For example, the English word forms run, runs, ran and running are forms of the same lexeme. A related concept is the lemma (or citation form), which is a particular form of a lexeme that is chosen by convention to represent a canonical form of a lexeme. Lemmas are used in dictionaries as the headwords, and other forms of a lexeme are often listed later in the entry if they are unusual in some way.

Unit: The word unit means any of several things:...

Morphological: REDIRECT morphology...

Analysis: An analysis is a critical evaluation, usually made by breaking a subject (either material or intellectual) down into its constituent parts, then describing the parts and their relationship to the whole. See also analytic and synthesis....