en passant is a noun and adverb meaning "(chess) a chess pawn that is moved two squares can be captured by an opponent's pawn commanding the square that was passed". It carries 2 recorded senses.
(chess) a chess pawn that is moved two squares can be captured by an opponent's pawn commanding the square that was passed
chess
incidentally; in the course of doing something else
“he made this remark in passing”
Definitions, synonyms and semantic relations for en passant come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.