有一無二 yǒuyīwú'èr unique Origin Definitions Defs Strokes Stroke Words Sentences Sents 有 yǒu verb there is there is; there are; to exist; to occur or happen一 yī numeral one one; the number 1; single; alone无 無 wú adjectiveverb to not have to not have; there is no; lack; (as prefix) non-; un-; -less二 èr numeral two the number two; 2