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 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)
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