noun, noun which may take the genitive case particle 'no'
risking one's life; life-and-death
Describes an action or situation where one's life is at stake; often used as a noun or no-adjective.
彼は命がけで子供を火の中から救い出した。
He risked his life to rescue the child from the fire.
それは命がけの手術だった
It was a life-and-death operation.