bottle stopper
This bottle has no cap.
plug
This plug is very tight.
(gun) bolt
The gun bolt is broken.
(grenade) pin
Where is the safety pin on the hand grenade?
bottle stopper
This bottle has no cap.
plug
This plug is very tight.
(gun) bolt
The gun bolt is broken.
(grenade) pin
Where is the safety pin on the hand grenade?