四
一
二
惨
案
s
ì
s
ì
y
í
y
ī
è
r
è
r
c
ǎ
n
c
ǎ
n
à
n
à
n
Definitions
1. the massacre of 12th Mar 1927
2. the Shanghai coup of 12th Mar 1927 by Chiang Kai-shek against the communists
Components
四一二
sì yī èr
–
12th April
惨案
cǎn àn
–
massacre