字儿 zìr character Definitions Defs Origin Strokes Stroke Words Sentences Sents zìr character · word 字 zì noun character written character; symbol; script; word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.zìr receipt 字 zì receipt (bound form) a written proof of something, such as a receipt, contract, or legal document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.