1234KeywordthirtythirtiethFrequency#4402Strokes4ReadingssàMnemonicThree tally marks; compare ten 十 and twenty 廿Stroke orderComposed of一one川riverUsed in characters带bandUsed in vocabulary卅sàthirty五卅运动wǔsàyùndònganti-imperialist movement of 30th May 1925, involving general strike esp. in Shanghai, Guangzhou, Hong Kong etc五卅wǔsàabbr. for 五卅运动 (wǔsàyùndòng), The May Thirtieth Movement (1925)