action, aerial combat, affray, armored combat, attraction, battle, battle royal, brush, bullfight, clash, clash of arms, cockfight, combat, conflict, dogfight, draft, drawing, drayage, embroilment, exchange of blows, extraction, fight, fire fight, fray, ground combat, hand-to-hand combat, hand-to-hand fight, haulage, hauling, heaving, house-to-house combat, naval combat, passage of arms, pitched battle, pull, pulling, pulling power, quarrel, rumble, running fight, scramble, scrimmage, scuffle, shoving match, skirmish, stand-up fight, street fight, struggle, tauromachy, towage, towing, traction, tractive power, tugging, tussle

For further exploring for "tug-of-war" in Webster Dictionary Online