goldfish Syllabification: (gold·fish)Pronunciation: /ˈgōldˌfiSH/Translate goldfish | into French | into German | into Italian | into Spanish Definition of goldfish noun (plural same or goldfishes) a small reddish-golden Eurasian carp, popular in ponds and aquariums. A long history of breeding in China and Japan has resulted in many varieties of form and color. Carassius auratus, family Cyprinidae goldfish in other Oxford dictionaries Definition of goldfish in the British & World English dictionary