chess vs en passant

chess and en passant both are nouns.

Word	Noun	Adjective	Verb	Adverb
chess	Yes	No	No	No
en passant	Yes	No	No	Yes

chess (noun)	en passant (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	(chess) a chess pawn that is moved two squares can be captured by an opponent's pawn commanding the square that was passed
weedy annual native to Europe but widely distributed as a weed especially in wheat

chess (adverb)	en passant (adverb)
	incidentally; in the course of doing something else