vault
(a room with thick walls and a strong door where money or valuable things are kept)
- The diamond is shut away in a bank vault.
- We need to keep the money safe in a vault.
(to jump over something, using your hands or a pole to support you)
- He vaulted the wall easily.
- The gymnast performed a difficult vault. [as noun]
volt
(a standard unit for measuring the power of an electric current)
- A 12-volt car battery contains six 2-volt cells connected in series.
- We need a 220-volt transformer.