vital point; weak spot; tender spot
Refers to a physically vulnerable part of the body, such as the solar plexus or temple. Often used in martial arts or self-defense contexts.
In boxing, targeting vital points is a foul.
He accurately struck his opponent's weak spot.
Colloquial use for the male crotch as a target in fighting. Often used in the phrase 急所を蹴る (kick in the groin).
See also: 金的
He was kicked in the groin and fell down.
In the game of go, a critical intersection where a move can decide the outcome of a local fight or the whole game.
In this position, this is the vital point.
He kicked his opponent in a vital spot and knocked him down.
His explanation got right to the heart of the issue.
He dodged just in time and avoided the vital point.
In this position, playing at the vital point is the best move.