性命交关 xìngmìngjiāoguān a matter of life and death Origin Definitions Defs Strokes Stroke Words Sentences Sents 性命 xìngmìng noun life life (of humans or animals); physical existence交关 交關 jiāoguān to involve to be related to; to involve or have to do with; often used in the idiom 性命交关 xìngmìngjiāoguān meaning "to be a matter of life and death"