The Chinese word for finger is
手指

shǒu zhǐ

Chinese Definition

finger
1. 名词. 手指
Components
手
1. hand
2. expert; master
高手 - master
3. -ist; -er
歌手 - singer
4. convenient; handy; portable
手機 - mobile phone
手冊 - handbook
5. handwritten
6. (Min Nan) luck in gambling
7. (Mainland China Hokkien)
8. (Taiwanese Hokkien) hidden part (general)
9. (finance)
10. usage. In many varieties of Chinese south of the Yangtze River, 手 refers to the arm and hand collectively.
指
1. finger
手指 - finger
2. to point; to point out; to aim
指出 - to point out
指人 - to point at a person
3. to indicate; to show; to demonstrate
4. to refer to; to mean
春天指的是冬天後面的那個季節。 - Spring refers to the season after winter.
5. to rely on; to depend on
6. to criticize; to rebuke
7. to make one’s hair stand on end

手指
1. n. (anatomy) finger
交叉手指 - to cross one's fingers
請切勿將手指伸入籠中。 - Please do not poke your fingers through the cage.
2. n. (Hong Kong Cantonese, informal) flash drive; thumb drive
3. n. (Min) finger ring; ring