1. [noun] One who gains a profit or advantage.
2. [noun] One who puts on weight.
3. [noun] (sports) (slang) A diving (or gymnastics) maneuver (from a high-dive diving board or high diving platform) involving a simultaneous inversion and rotation.
4. [noun] A person who gains weight.
5. [noun] A person who gains (gains an advantage or gains profits); 'she was clearly the gainer in that exchange'.
6. [noun] A dive in which the diver throws the feet forward to complete a full backward somersault and enters the water feet first and facing away from the diving board.
