一
一
y
ì
y
ī
y
ī
y
ī
Definitions
1. one by one
2. one after another
Components
一
yī
–
one
Related Words
一一映射
yī yī yìng shè
–
bijective map (i.e. map between sets in math. that is one-to-one and onto)
一一对应
yī yī duì yìng
–
one-to-one correspondence
九一一
jiǔ yī yī
–
PN: September 11 (the day when terror attacks happened in US)