Synonyms of cave

Noun

1. cave, geological formation, formation

usage: a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea

Verb

1. cave, undermine, hollow, hollow out, core out

usage: hollow out as if making a cave or opening; "The river was caving the banks"

2. cave, spelunk, explore

usage: explore natural caves

Definition and meaning of cave (Dictionary)