Definitions
1.nounAn arched masonry structure supporting and forming a ceiling, whether freestanding or forming part of a larger building.
2.nounAny arched ceiling or roof.
3.nounAnything resembling such a downward-facing concave structure, particularly the sky and caves.
4.nounThe space covered by an arched roof, particularly underground rooms and church crypts.
5.nounAny cellar or underground storeroom.
6.nounAny burial chamber, particularly those underground."Family members had been buried in the vault for centuries."
7.nounThe secure room or rooms in or below a bank used to store currency and other valuables; similar rooms in other settings."The bank kept their money safe in a large vault."
8.nounA piece of apparatus used for performing jumps.
9.nounA gymnastic movement performed on this apparatus.
10.nounAn encrypted digital archive.
11.nounAn underground or covered conduit for water or waste; a drain; a sewer.
12.nounAn underground or covered reservoir for water or waste; a cistern; a cesspit.
13.nounA room employing a cesspit or sewer: an outhouse; a lavatory.
14.verbTo build as, or cover with a vault.