gen. A natural or man-made hole in the ground, usually a large or deep one.

A deep place, a depth, either in the sea or land; an abyss. Also in plural with the: the depths. Obsolete.

A deep hole or opening in the earth; a pit, gulf, abyss. Obsolete except as in 1b.

A very deep place, an abyss; the deepest part or parts of something. Also figurative. Now rare.

Any deep immeasurable space; a profound chasm or gulf. Also figurative. Cf. abyss, n. 2, 3.

An abysm; a deep pit.

A yawning chasm or abyss; an opening in the earth produced by an earthquake or volcanic action; a vast ravine or gorge. a fiery gulf, gulf of fire…

A bottomless chasm; any unfathomable cavity or void space.

A measure of length. in plural. Depths. literal and figurative. Also in figurative expressions fathoms deep, fathoms down; cf. compounds 2.

Chiefly poetic. The deepest or innermost part of something; a very deep place; an abyss; spec. the depths of the sea (cf. deep, n. 3a). Also figur…

a well of a (place): a place like a well, as being damp and cold or deep and dark. Now rare.

figurative. In plural. Depths. rare.