Is “Lexis” a Scrabble word?
Yes
LEXIS
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Lexis
/ˈlɛksɪs/
noun
1.The set of all words and phrases in a language; any unified subset of words from a particular language.
2.(pedagogy, TEFL) Words, collocations, and common phrases in a language; vocabulary and word combinations.
3.The vocabulary used by a writer
“In this broadsheet newspaper, the reporter uses a complicated and formal lexis which I find hard to understand.”