expression, godan verb (-mu)
grapple with; come to grips with
Sumo-derived expression for locking arms and struggling with an opponent; also used figuratively for confronting a problem or person head-on.
力士たちは土俵の上で四つに組んだ。
The sumo wrestlers grappled with each other on the ring.
彼
He grappled with the difficult problem and found a solution.