一本万利 yīběnwànlì huge profit from little investment Origin Definitions Defs Strokes Stroke Words Sentences Sents 一本 yīběn numeral one volume One copy or one volume of a book, document, or file; also used as a measure word for such items万 萬 wàn nounadjective countless myriad; multitudinous; a great number利 lì nounverb profit profit; gains from business, trade, or production