Chiburi 血振

Chiburi 血振 is a term used in Japanese sword arts to mean “blood-shaking,” the motion of flicking or casting off blood from the blade after a cut. In iaido, kenjutsu, and many koryū systems, chiburi refers to the ritualized action performed after cutting to symbolically remove blood from the sword; show composure and completion of the action; express awareness and control (linked to zanshin); prepare for nōtō (sheathing). It’s not just cleaning the sword, it’s a formalized expression of awareness, spirit, and closure.

Common types of Chiburi

Different sword schools use different forms, but here are the most common:

Ō-chiburi 大血振り
A large sweeping motion, common in koryū styles.
Ko-chiburi 小血振り
A small, controlled flick of the wrist.
Yoko-chiburi 横血振り
A sideways flicking motion.
Tate-chiburi 縦血振り
A vertical version, often seen in formal iai kata.

Historically, chiburi does not actually clean blood effectively — its purpose is symbolic, formal, psychological, and combative (maintaining readiness and posture). It expresses: “I have cut. I am still ready. I am not distracted.”

Translation

chiblood
振りburi/furishake, swing, flick
血振chiburi“shaking off blood.”

Note

Some schools write it as 血振. Others prefer 血振り. Both are correct.

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