lexis
Pronunciation:
/ˈlɛksɪs/noun
Definitions
The set of all words and phrases in a language; any unified subset of words from a particular language.
(pedagogy, TEFL) Words, collocations, and common phrases in a language; vocabulary and word combinations.
The vocabulary used by a writer
Example: In this broadsheet newspaper, the reporter uses a complicated and formal lexis which I find hard to understand.