A deep opening made by disruption, as a breach in the earth or a rock; a yawning abyss; a cleft; a fissure.

A void space; a gap or break, as in ranks of men.

noun - A planar division between two sets of points; a gap that separates two objects in realmspace or lower. A chasm can penetrate objects in tetraspace or higher without splitting them. It is the realmspace analog of the hole in planespace and the gully in tetraspace.

In caves, a deep, wide and elongated gap in a cave floor.

a deep opening in the earth's surface

a deep, steep-sided gorge

a great divide, usually a deep long running pit gashed into a mountain

A particularly narrow portion of a gorge or ravine where the width is notably exceeded by the depth and the sides are vertical or nearly so.

n. A yawning hollow, as in the earth's surface.

(noun) A deep cleft in the surface of the earth

A deep crack in the earth's surface. A wide divergence of feelings or interests.