A level driven across the course of a vein, or across the main workings, as from one gangway to another.
A crosswise cut.
A shortcut.
A crosscut saw.
An instance of filmic crosscutting.
To cut (wood, lumber) across the grain.
To cut across something.
To cut repeatedly between two concurrent scenes.
An underground route for pipes, sewers, etc.
A rapid transit system, regardless of the elevation of its right of way; a metro system.
An underground railway, especially for mass transit of people in urban areas.
A train that runs on such an underground railway.
An underground walkway, tunnel for pedestrians (called pedestrian underpass in US).
To travel by underground railway.