Definition of vault
- vault Noun An arched structure of masonry, forming a ceiling or canopy.
- vault Noun A structure resembling a vault, especially that formed by the sky.
- vault Noun A secure, enclosed area, especially an underground room used for burial, or to store valuables, wine etc.
- vault Verb To build as, or cover with a vault.
- vault Verb To jump or leap over.
- vault Noun An act of vaulting; a leap or jump.
- vault Noun An event in gymanstics performed on a vaulting horse.