Clipping of 零式艦上戦闘機 (Rei-shiki Kanjō Sentōki, “Type 0 Carrier Fighter: Mitsubishi A6M Zero”).

a (single) battle, match, fight

to fight a single match

warfare involving physical combat instead of weapons / (figuratively) activity involving large amounts of physical contact, especially sports

psychological warfare

a contest (for a trophy, a title, etc...)

(historical) battleaxe, poleaxe

battle of the brains

(sports) a game/match between teams from Waseda University and Keio University

(collective, chiefly in compounds) many or all battles