胡同儿 hútòngr HSK5 alley Definitions Defs Origin Strokes Stroke Words Sentences Sents 胡同 hútòng noun alley lane; alley; narrow street (originally used in northern China and Beijing)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.