子母扣 zǐmǔkòu snap fastener Origin Definitions Defs Strokes Stroke Words Sentences Sents 子 zǐ noun subordinate (bound form) secondary; subordinate; derived from a main body or source母 mǔ nut (bound form) nut (to hold a bolt); the female or larger part of a matching pair of objects扣 kòu noun fastener button; buckle; clasp