一份 yīfèn one portion Definitions Defs Origin Strokes Stroke Words Sentences Sents yīfèn one portion 一 yī numeral one one; the number 1; single; alone份 fèn measure word [classifier] Used for sets of objects, copies of documents, newspapers, or portions of food; also used for people's attitudes or appearances.yīfèn a share 一 yī numeral one one; the number 1; single; alone份 fèn noun share A share or portion of a whole