pirana vs piranha

pirana and piranha both are nouns.

Word	Noun	Adjective	Verb	Adverb
pirana	Yes	No	No	No
piranha	Yes	No	No	No

As nouns, pirana and piranha are synonyms defined as:

pirana and piranha: small voraciously carnivorous freshwater fishes of South America that attack and destroy living animals

Other synonyms of pirana include caribe.

pirana (noun)	piranha (noun)
small voraciously carnivorous freshwater fishes of South America that attack and destroy living animals	small voraciously carnivorous freshwater fishes of South America that attack and destroy living animals
	someone who attacks in search of booty