cave

A cave is a large, naturally-formed hole formed underground, or in the face of a cliff or a hillside.

Example: A storm is coming towards us, lets take shelter in that cave.

A hole, depression, or gap in earth or rock, which could be natural or man-made.

A storage cellar, especially for wine or cheese.

A collapse or cave-in.

To surrender.

Example: Joe asked his mom for a new bike every day for a month and she finally caved and got him one.