lexis definitions

WordNet (r) 3.0 (2005)

n
1: all of the words in a language; all word forms having meaning or grammatical function

Merriam Webster's

noun (plural lexes) Etymology: Greek, speech, word Date: 1960 lexicon 2a

Oxford Reference Dictionary

n. 1 words, vocabulary. 2 the total stock of words in a language. Etymology: Gk: see LEXICON

Collin's Cobuild Dictionary

In linguistics, the words of a language can be referred to as the lexis of that language. (TECHNICAL) = vocabulary