1. (bound form) machine; mechanism
2. (bound form) aircraft
3. (bound form) an opportunity
4. (bound form) crucial point; pivot
5. (bound form) quick-witted; flexible
6. (bound form) organic

1. gun
2. firearm
3. rifle
4. spear
5. thing with shape or function similar to a gun
6. to substitute for another person in a test
7. to knock
8. classifier for rifle shots

classifiers: 支, 把, 桿, 條, 枝