The pit left by the explosion of a mine or bomb.
Any large, roughly circular depression or hole.
The basin-like opening or mouth of a volcano, through which the chief eruption comes; similarly, the mouth of a geyser, about which a cone of silica is often built up.
A hemispherical pit created by the impact of a meteorite or other object.
To form craters in a surface.
To collapse catastrophically; to become devastated or completely destroyed.
To crash or fall.
A mine that is placed on land and designed to explode when stepped upon or touched.
A piece of exercise device consisting of a pivoting tube attached to the ground to which a barbell can be fitted to lift it off the ground.
A critical subject or situation with concealed or unpredictable implications.