Dictionary Definition

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

User Contributed Dictionary

From , possibly via Latin.

lexis

The total set of words in a language.
The vocabulary used by a writer

In this broadsheet newspaper, the reporter uses a complicated and formal lexis which I find hard to understand sometimes.

From λέξις (lexis)

Irregular. Accusative plural lexeis.

Lexis may refer to:

Lexis (linguistics), the total bank of words and phrases of a particular language, the artifact of which is known as a lexicon
Wilhelm Lexis (1837-1914), an eminent German statistician, economist, and social scientist and a founder of the interdisciplinary study of insurance
LexisNexis, a proprietary online information database which includes Lexis.com