British English vs noughts and crosses

British English and noughts and crosses both are nouns.

Word	Noun	Adjective	Verb	Adverb
British English	Yes	No	No	No
noughts and crosses	Yes	No	No	No

British English (noun)	noughts and crosses (noun)
English as spoken in the UK	a game in which two players alternately put crosses and circles in one of the compartments of a square grid of nine spaces; the object is to get a row of three crosses or three circles before the opponent does