1. a natural underground hollow or passage in rock

1. to collapse inward suddenly
2. to give in to pressure or demands
Usage: informal

Examples

• The explorers discovered a large cave behind the waterfall.
• Bats often live in dark caves during the day.
• The roof of the old mine began to cave in.
• The heavy snow caused the barn roof to cave.
• After hours of arguing, he finally caved to their demands.
• The company caved under pressure from protesters.
• We explored the limestone caves on our field trip.