godan verb (-u), transitive verb
exchange blows; hit each other; fight
Describes two or more parties striking each other, often in a physical fight or combat. Can be used literally for hitting or figuratively for exchanging attacks.
二人は激しく打ち合った。
The two exchanged fierce blows.
ボクサーたちはリングの中央で打ち合って
The boxers are trading punches in the center of the ring.