六四慘案 liùsìcǎn'àn June Fourth Massacre Origin Definitions Defs Strokes Stroke Words Sentences Sents 六四 liùsì June 4 incident Refers to the Tiananmen Square protests and subsequent military crackdown on June 4, 1989.惨案 慘案 cǎn'àn massacre A tragic event involving a brutal murder case or a massacre of innocent people; a disaster or tragedy involving heavy casualties