A critical subject or situation with concealed or unpredictable implications.
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 mine that is placed on land and designed to explode when stepped upon or touched.
A situation of serious and immediate danger.
An event which causes a loss, or the risk of a specific such event.
Something that causes, contains, or presents danger.
To cause to be in danger; to imperil; to risk.