The vagina.
A code cave.
A hole, depression, or gap in earth or rock, whether natural or man-made.
A large, naturally-occurring cavity formed underground or in the face of a cliff or a hillside.
A shielded area where nuclear experiments can be carried out.
A storage cellar, especially for wine or cheese.
A place of retreat, such as a man cave.
A naturally-occurring cavity in bedrock which is large enough to be entered by an adult.
Debris, particularly broken rock, which falls into a drill hole and interferes with drilling.
A group that breaks from a larger political party or faction on a particular issue.
A collapse or cave-in.
To engage in the recreational exploration of caves.
To hollow out or undermine.
To surrender.
In room-and-pillar mining, to extract a deposit of rock by breaking down a pillar which had been holding it in place.
To collapse.
look out!; beware!
The pubic hair near a vulva or a vulva itself.
An aggregated mass of any ore or mineral, in an isolated state, within a rock.
A home that a child or young adult shares with a parent or guardian.
A structure built by a bird as a place to incubate eggs and rear young.
A collection of boxes, cases, or the like, of graduated size, each put within the one next larger.
A compact group of pulleys, gears, springs, etc., working together or collectively.
A circular bed of pasta, rice, etc. to be topped or filled with other foods.
A snug, comfortable, or cosy residence or job situation.
A structure consisting of nested structures, such as nested loops or nested subroutine calls.
A retreat, or place of habitual resort.
A hideout for bad people to frequent or haunt; a den.
A place used by another mammal, fish, amphibian or insect, for depositing eggs and hatching young.
A fixed number of cards in some bidding games awarded to the highest bidder allowing him to exchange any or all with cards in his hand.
A fortified position for a weapon.
To successively neatly fit inside another.
To place one thing neatly inside another, and both inside yet another (and so on).
To build or settle into a nest.
To hunt for birds' nests or their contents (usually "go nesting").
To settle into a home.
To place in, or as if in, a nest.