n An arched masonry structure supporting and forming a ceiling, whether freestanding or forming part of a larger building.
n Any arched ceiling or roof.
n (figuratively) Anything resembling such a downward-facing concave structure, particularly the sky and caves.
n The space covered by an arched roof, particularly underground rooms and (Christianity, obsolete) church crypts.
n Any cellar or underground storeroom.
n Any burial chamber, particularly those underground.
n The secure room or rooms in or below a bank used to store currency and other valuables; similar rooms in other settings.
n (often figurative) Any archive of past content.
n (computing) An encrypted digital archive.
n (obsolete) An underground or covered conduit for water or waste; a drain; a sewer.
n (obsolete) An underground or covered reservoir for water or waste; a cistern; a cesspit.
n (obsolete, euphemistic) A room employing a cesspit or sewer: an outhouse; a lavatory.
v (transitive) To build as, or cover with a vault.
v (video games) To remove (an item, character, etc.) from a video game in an update.
v (transitive, intransitive) To jump or leap over with a hand and/or foot on the item for support.
n An act of vaulting, formerly (chiefly) by deer; a leap or jump.
n (gymnastics) A piece of apparatus used for performing jumps.
n (gymnastics) A gymnastic movement performed on this apparatus.
n (equestrianism) Synonym of volte: a circular movement by the horse.
n (gymnastics) An event or performance involving a vaulting horse.