笔记本儿 bǐjìběnr notebook Origin Definitions Defs Strokes Stroke Words Sentences Sents 笔记本 筆記本 bǐjìběn noun notebook notebook for writing or taking notes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.