股长

1. • person in charge of a 股 gǔ (section or department)
2. • head
3. • chief
4. • director
5. • student responsible for a specific duty, e.g. 风纪股长 fēngjìgǔzhǎng discipline monitor

     in a class in a school

Character by character

• 股(gǔ)thigh
• 长(zhǎng)grow