Dive (and diving) is a word that can have several meanings:

In the context of aquatics:

• Underwater diving refers to the practice of swimming underwater
• Scuba diving refers to the practice of swimming underwater with breathing apparatus.
• Diving refers to the sport of jumping head first into a body of water or pool, with an emphasis on acrobatics and/or height of the dive.
• Diving can refer to the act of a submarine or other submersible vehicle going below the surface of the water.
• Diving can refer to the act of marine mammals and other animals which are normally not aquatic, but go underwater from time to time.

In the context of music:

• Dive is an industrial music band from Belgium.
• Dive is the name of a 1993 album by Sarah Brightman.
• "Dive" is the name of a song by Nirvana.
• "Dive" can also refer to the name of J-pop band BeForU's first single, which first appeared in Dance Dance Revolution 5thMIX.

In sports:

• Diving (football) refers to the faking or exaggeration of an injury, in particular in football (soccer), in order to draw a foul on an opponent or otherwise gain an advantage. Also a well known term in ice hockey, when a player tries to draw a penalty.
• The intentional throwing of a fight in boxing is known as taking a dive.
• In numerous sports, including basketball and baseball, the practice of throwing oneself horizontally into the ground in order to catch or field a ball is known as diving.
• In American football, the practice of a ball-carrier propelling himself up and over the line of scrimmage, usually on a very short-yardage down, is called diving.

Other meanings:

• In relation to aircraft, it is a maneuver where the nose of the aircraft is pointed vertically down to ground. See dive bomber.
• Dive can be used generically whenever some quantity (such as a company's stock price) experiences a sudden and swift decline; usually this indicates that the decline is a negative event.
• A dive bar is a term used to represent a cheap, dingy drinking establishment.
• Dive is the name of a film, released in 2003, filmed in and taking place in a Washington, D.C. dive bar.
• Dive! is the name of a short-lived (1994-99) restaurant founded by Steven Spielberg in Century City, California, notable for its facade in the shape of a submarine.
• DIVE, or Distributed Interactive Virtual Environment, is a prototype multi-user VR system.