An air-raid shelter, a structure designed to give protection against air raids and bombs.
Sufficiently strong to resist the effects of a blast from a bomb.
To make resistant to bomb blasts.
A small pit dug into the ground as a shelter for protection against enemy fire.
The burrow in the ground where a fox lives.
To dig a military foxhole into, or convert into a foxhole by digging.
To drive into a military foxhole.