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head; head of a person, doll, or corpse
Note: rare; archaic; literary
「首」 has other readings with different meanings.
お人形のかしらを取り替える。
I'm replacing the doll's head.
彼は長年一家のかしらを務めた。
He is the head of the family.
山賊のかしらが捕まった。
The bandit leader was caught.