6 letters · 7 points in Scrabble
noun a person who gains weight
noun a person who gains (gains an advantage or gains profits)
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
originFrom gain + -er. Compare German Gegner (“opponent, adversary”).
Etymology from Wiktionary, CC BY-SA 3.0