noun, verb, caved, cav⋅ing.| 1. | a hollow in the earth, esp. one opening more or less horizontally into a hill, mountain, etc. |
| 2. | a storage cellar, esp. for wine. |
| 3. | English History. a secession, or a group of seceders, from a political party on some special question. |
| 4. | to hollow out. |
| 5. | Mining.
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| 6. | to cave in. |
| 7. | cave in,
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| cave (kāv) Pronunciation Key
A naturally occurring underground hollow or passage, especially one with an opening to the surface of the Earth. Caves can form through a variety of processes, including the dissolution of limestone by flowing water, the differential cooling of volcanic magma (which occurs when the outside surface of the lava cools, but the inside continues to flow downwards, forming a hollow tube), or the action of wind and waves along a rocky coast. |