Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun cave

1 sense of cave

Sense 1
cave -- (a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea)
       => geological formation, formation -- ((geology) the geological features of the earth)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb cave

2 senses of cave

Sense 1
cave, undermine -- (hollow out as if making a cave or opening; "The river was caving the banks")
       => hollow, hollow out, core out -- (remove the interior of; "hollow out a tree trunk")

Sense 2
cave, spelunk -- (explore natural caves)
       => explore -- (travel to or penetrate into; "explore unknown territory in biology")