游ぐ[oyogu] to swim
回游[kaiyuu] excursion
游撃[yuugeki] raid
游魚[yuugyo] fish swimming about in water
游ぎ[oyogi] swimming

游泳[yuuei] swimming
浮游[fuyuu] floating
回游魚[kaiyuugyo] migratory fish
游侠[yuukyou] chivalrous person
游蛇[yuuda] water snake

天魚[amago] land-locked variety of red-spotted masu trout (Oncorhynchus masou ishikawae)
海鷂魚[ei] ray (fish)
斉魚[etsu] Japanese grenadier anchovy (Coilia nasus)
旗魚[kajiki] marlin
鶏魚[isagi] chicken grunt (species of fish, Parapristipoma trilineatum)

杜父魚[tofugyo] sculpin (any fish of family Cottidae, inc. the bullheads and the miller's-thumb)
堅魚[katsuo] skipjack tuna
魚網[gyomou] fishing net
魚屋[sakanaya] fish market
魚貝[gyokai] marine products