pitched battle, rough-and-tumble

affray [chiefly British], battle royal, brawl, broil, donnybrook, free-for-all, melee (also mêlée), mix-up, ruckus, ruction

blows, fistfight, fisticuffs, grapple, handgrips, punch-out, punch-up [chiefly British], slugfest

confrontation, duel, face-off, joust

altercation, argle-bargle [chiefly British], argument, argy-bargy [chiefly British], contretemps, controversy, cross fire, disagreement, dispute, falling-out, kickup, misunderstanding, quarrel, row, spat, squabble, tangle, tiff, wrangle

catfight