…the activity of being lowered into the sea in a protective steel cage in order to view sharks or other dangerous sea creatures at close range…
…an open-bottomed chamber supplied with air, in which a person can be let down under water…
…a duck of a type which dives under water for food, such as the pochard, scaup, tufted duck, and goldeneye…
…a watertight suit, typically with a helmet and an air supply, worn for working or exploring deep under water…
…the action or sport of swimming under water without a diving suit, typically in deep water using an aqualung and flippers…
…a predatory water beetle which has fringed back legs for swimming and which stores air under its wing cases while diving…
…an elevated board projecting over a swimming pool or other body of water, from which people dive or jump in…
…a stocky auklike seabird of southern oceans, having black upper parts and white underparts…
…the practice (typically among audience members) of jumping from the stage at a rock concert or other event to be caught and carried aloft by the crowd below…
…the practice of raiding dumpsters to find discarded items that are still useful, can be recycled, and have value…
…deep-sea diving in which the diver’s bloodstream is saturated with helium or other suitable gas at the pressure of the surrounding water, so that the decompression time afterwards is independent of the duration of the dive…
…the sport of jumping from an aircraft and performing acrobatic manoeuvres in the air under free fall before landing by parachute…
…(of a submarine) dive rapidly and steeply to a deeper level in an emergency…
…occupy oneself suddenly and enthusiastically with (a meal, or an engrossing subject or activity)…
…use one’s ingenuity to deal with or evade a situation…
