名詞 gainer:

1. a person who gains weight
   同義詞：weight gainer
2. a person who gains (gains an advantage or gains profits)
3. 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
   同義詞：full gainer

gain.er

n.（名詞）
One that gains:
獲得者：
例句：
a gainer of weight.
一個體重增加者

Sports A dive in which the diver leaves the board facing forward, does a back somersault, and enters the water feet first.
【體育運動】 后滾翻花式跳水：跳水運動員面向前跳離跳板，向后翻騰一周后入水，身體直立腳先觸水