caving Definition

cave¹
noun

1. A large natural hollow chamber either underground, usually with an opening to the surface, or in the side of a mountain, hillside or cliff.

Thesaurus: hollow, den, cavern, cavity, grotto.
2. A small group of politicians who secede from their party over some issue.

verb caved, caving

1. To hollow something out.
intr
2. To inhabit a cave, usually temporarily.

Etymology: 13c: French, from Latin cava, from cavus hollow.

Phrasal Verb: cave in

Said of walls, a roof, etc: to collapse inwards.Said of a person: to give way to persuasion. See also cave-in.

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caving
noun

1. The sport of exploring caves.