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.