scuba

/ˈskubə/
verb
  1. To swim underwater using a scuba device.
    • I learned to scuba during a family vacation in Hawaii.
    • Many tourists come here to scuba and see the shipwrecks.
    • They plan to scuba at the coral reef tomorrow morning.
Synonyms
noun
  1. A portable breathing device that allows a person to breathe underwater, consisting of one or more tanks of compressed air and a regulator.
    • The rental shop offers scuba gear for beginners and experts.
    • He forgot to rinse his scuba after the trip, so the saltwater damaged the regulator.
    • She checked her scuba before diving into the clear blue water.