1. • noun - a burial chamber (usually underground)
   • noun - a strongroom or compartment (often made of steel) for safekeeping of valuables
   • noun - an arched brick or stone ceiling or roof
   • noun - the act of jumping over an obstacle
   • verb - jump across or leap over (an obstacle)
   • verb - bound vigorously
2. • An arched structure, usually of stone, brick, or concrete, forming the supporting structure of a ceiling or roof.
   • An arched overhead covering, such as the sky, that resembles the architectural structure in form.
   • A room or space, such as a cellar or storeroom, with arched walls and ceiling, especially when underground.
   • A room or compartment, often built of steel, for the safekeeping of valuables: a bank vault.
   • A burial chamber, especially when underground.
   • An arched part of the body, especially the top part of the skull.
   • To construct or supply with an arched ceiling; cover with a vault.
   • To build or make in the shape of a vault; arch.
   • To jump or leap, especially with the use of the hands or a pole.
   • The act of vaulting; a jump.
3. • v - to provide with a vault (an arched ceiling)

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