三七二十一 sānqī'èrshíyī whatever it is Origin Definitions Defs Strokes Stroke Words Sentences Sents 三 sān numeral three the number three; 3七 qī numeral seven seven; 7; (banker's numeral) 柒 qī二 èr numeral two the number two; 2十 shí numeral ten the number ten; 10一 yī numeral one one; the number 1; single; alone