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.
An act of thwarting; something which thwarts; a hindrance, an obstacle.
A seat across a boat on which a rower may sit.
A brace, perpendicular to the keel, that helps maintain the beam (“breadth”) of a marine vessel against external water pressure and that may serve to support the rail.
Placed or situated across something else; cross, oblique, transverse.
To cause to fail; to frustrate, to prevent.