<p><strong>Noun</strong></p><ul><li>a hollow in the earth, especially one opening more or less horizontally into a hill, mountain, etc.</li><li>a storage cellar, especially for wine.</li><li>English History: a secession, or a group of seceders, from a political party on some special question.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>caved, cav·ing: to hollow out.</li><li>Mining: to cause (overlying material) to fall into a stope, sublevel, or the like.</li><li>to cause (supports, as stulls or sets) to collapse beneath overlying material.</li><li>to fill (a stope or the like) with caved-in material: sub-level caving.</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>caved, cav·ing: to cave in.</li><li>to fall in; collapse.</li><li>to cause to fall in or collapse.</li><li>Informal: to yield; submit; surrender: The opposition caved in before our superior arguments.</li></ul>