一いっ刀とう

noun

sword; blade

Only with reading いっとう

Refers to a single sword or blade, often in contexts of swordsmanship or weaponry. The reading いっとう is standard.

• 彼かれは一いっ刀とうのもとに相あい手てを倒たおした。

  He felled his opponent with a single sword stroke.

noun

single stroke

Used for a single cut or decisive action, often in idiomatic expressions like 一刀両断 (cutting in two with one stroke).

• 一いっ刀とう両りょう断だんの決けつ断だんを下くだした。

  He made a decisive, single-stroke decision.