急所

vital spot; weak point

kʲ ɨː ɕ o̞
noun Rare #44,136
vital spot; weak point A vulnerable part of the body, or a weakness that can be exploited.
JA: 彼は相手の急所を突いた。
EN: He struck at his opponent’s weak point.

鬼の…急所!

The demon’s… weak spot!

— Demon Slayer -Kimetsu no Yaiba- The Movie: Mugen Train (2020)

うぬぼれは人の一番の急所だ。

Vanity is a person's greatest vulnerability.

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