noun, noun which may take the genitive case particle 'no'
Describes a technique, blow, or move that is intended to be fatal or decisive. Often used in fighting, martial arts, and sports, as well as metaphorically for a surefire method.
He knocked out his opponent with a single deadly blow.
He unleashed a deadly blow.
This technique is his knockout punch.
The athlete sealed the match by landing a killer blow on his rival.
必殺 focuses on a deadly technique or move, whereas 必勝 focuses on certain victory as an outcome, so despite sharing 必 they describe different things.
killer technique; surefire assassination method · special move; finishing move
Standard kanji spelling; widely used in fiction and sports contexts.
Compound of 必 (certainly) and 殺 (kill). The word originally referred to a technique that guarantees a kill, and later extended to any decisive or surefire move.