- 书虫子 shūchóngzi bookwormA person who loves reading or someone who reads books without really understanding them; can refer literally to insects that eat books.
- 善虫子 shànchóngzi charity racketeera person who uses the guise of religious devotion or charitable activities to cheat others out of money
- 树虫子 shùchóngzi tree-harming insectinsects that are harmful to trees
- 虫子牙 chóngziyá tooth decaydecayed tooth; dental caries; rotten tooth
