chess game vs checkmate

chess game and checkmate both are nouns.

Word	Noun	Adjective	Verb	Adverb
chess game	Yes	No	No	No
checkmate	Yes	No	Yes	No

chess game (noun)	checkmate (noun)
a board game for two players who move their 16 pieces according to specific rules; the object is to checkmate the opponent's king	a chess move constituting an inescapable and indefensible attack on the opponent's king
	complete victory

chess game (verb)	checkmate (verb)
	place an opponent's king under an attack from which it cannot escape and thus ending the game