Phrases:
- 第四 dì sì
- fourth, number four
- 十四 shí sì
- fourteen, 14
- 四處 sì chù
- all over the place, everywhere and all directions
- 四川 sì chuān
- Sichuan province, China
- 四方 sì fāng
- four-way, four-sided
- 四會 Sì huì
- (N) Sihui (city in Guangdong)
- 四季 sì jì
- (n) the four seasons
- 四年 sì nián
- four years
- 四平 Sì píng
- (N) Siping (city in Jilin)
- 四千 sì qiān
- four thousand, 4 000
- 四十 sì shí
- forty, 40
- 四天 sì tiān
- four days
- 四月 sì yuè
- April, fourth month
- 四肢 sì zhī
- (n) the four limbs of the body
- 四周 sì zhōu
- all around
- 周四 zhōu sì
- Thursday