gainer Meaning, Definition & Usage

1. noun a person who gains weight
   weight gainer.
   
2. noun a person who gains (gains an advantage or gains profits)
   
   • she was clearly the gainer in that exchange
3. 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
   full gainer.
   

WordNet