Roughly, the set of inflected forms taken by a single word, such as the lexeme RUN including as members "run" (lemma), "running" (inflected form), or "ran", and excluding "runner" (derived term)
The fundamental unit of the lexicon of a language Lexemes are complimented by morphemes For example, the lexeme do changes its meaning if combined with the morphemes -es, -ing, -ne Yet, in the word construction, the con- and -ion are morphemes, while the lexeme -struct- has become meaningless in contemporary English
the basic abstract entity in the mental lexicon that corresponds to a set of different word-forms which realise that lexeme Written with capital letters serves as head term à ( GO)