Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun piranha

2 senses of piranha

Sense 1
marauder, predator, vulture, piranha -- (someone who attacks in search of booty)
       => attacker, aggressor, assailant, assaulter -- (someone who attacks)

Sense 2
piranha, pirana, caribe -- (small voraciously carnivorous freshwater fishes of South America that attack and destroy living animals)
       => characin, characin fish, characid -- (any freshwater fish of the family Characinidae)