/ Dictionary / Index L lexis: Meaning and Definition of Find definitions for: lex•is Pronunciation: (lek'sis), [key] — n. Ling. the vocabulary of a language, as distinct from its grammar; the total stock of words and idiomatic combinations of them in a language; lexicon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lexis (Thesaurus) Lexington Park lex loci Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language