swordfish Syllabification: (sword·fish)Pronunciation: /ˈsôrdˌfiSH/Translate swordfish | into French | into German | into Italian | into Spanish Definition of swordfish noun (plural same or swordfishes) a large edible marine fish with a streamlined body and a long flattened swordlike snout, related to the billfishes and popular as a game fish. Xiphias gladius, the only member of the family Xiphiidae swordfish in other Oxford dictionaries Definition of swordfish in the British & World English dictionary