四唐 sìtáng Four Tangs Definitions Defs Origin Strokes Stroke Words Sentences Sents 四 sì numeral four the number four; complex form used for financial purposes is 肆 sì唐 táng Tang dynasty The Tang dynasty (618-907); also refers to the Later Tang (923-936) or Southern Tang (937-975) of the Five Dynasties and Ten Kingdoms period.