Predatory fish refers to a group of fish species that rely on hunting other aquatic animals as their primary source of food. When looking for synonyms for this term, one could use words such as carnivorous fish, predatory species, hunter fish, and piscivorous fish. These words help to describe the hunting nature of these fish and their dependence on a diet of smaller fish, crustaceans, and other marine life. It is essential to keep in mind that not all fish species are carnivorous, which is why the term "predatory fish" is restricted to those fish that hunt as part of their natural feeding habits.