gainer

name

1. A surname.

noun

Etymology: From gain + -er. Compare German Gegner (“opponent, adversary”).

1. One who gains a profit or advantage.

   “… it is obvious that the Californian heiress is not the only gainer by an alliance which will enable her to make the easy and common transition from a Republican lady to a British peeress.”

   “Let every youth take a leaf out of my book and make it a point to account for everything that comes into and goes out of his pocket, and like me he is sure to be a gainer in the end.”

2. One who puts on weight.
3. A diving or gymnastics maneuver, from a high diving board or platform, involving a simultaneous inversion and rotation.

   “I tried a full gainer with a twist, the way he did it, but succeeded only in smacking the water with my thighs.”