钥匙儿 yàoshi'ér key Origin Definitions Defs Strokes Stroke Words Sentences Sents yàoshi'ér key 钥匙 鑰匙 yàoshi noun key key for opening a lock儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.yàoshi'ér latchkey child 钥匙 鑰匙 yàoshi noun key key for opening a lock儿 兒 ér noun child (bound form) child; youth; young person