Meaning & use

piranha fish

noun·Everyday

Last updated

UK/pɪˈrɑːnə fɪʃ/
US/pɪˈrɑːnə fɪʃ/

Meanings

  1. nouncountable

    A small freshwater fish from South American rivers with sharp teeth, known for biting in groups.

    Grammar: Countable: a piranha fish; plural piranha fish or piranhas.

    Patterns

    • school of piranha fish
    • feed piranha fish

    The piranha fish swam in a tight school near the river bank.

    We saw a piranha fish at the aquarium.

    Local guides warned us not to swim near piranha fish.

  2. nouncountablefigurativeinformal

    A fierce, greedy person, often a ruthless business rival.

    Grammar: Figurative: used of people who attack ruthlessly.

    Patterns

    • act like a piranha

    The lawyers were piranha fish circling the weaker company.

    In the job market, she faced piranha fish competitors.

    The press behaved like piranha fish after the scandal.

Word forms

pluralpiranha fish

Common combinations

school of piranha fish
A school of piranha fish stripped the carcass.
feed piranha fish
The keeper fed the piranha fish meat.
swim with piranha fish
No one dared swim with piranha fish.
red-bellied piranha fish
The red-bellied piranha fish is the most famous type.
piranha fish tank
The piranha fish tank held twenty fish.

Synonyms and how they differ

piranha
Piranha alone is the usual, shorter name for the same fish.
pacu
Pacu is a related plant-eating fish and is often mistaken for piranha.
predator fish
Predator fish is a general phrase covering any hunting fish.

Word family

piranha noun
the shorter name
piranhas noun
common plural
school noun
a group of fish

Commonly confused: piranha fish or barracuda?

piranha fish vs barracuda

A barracuda is a large sea fish, whereas piranhas are small river fish.

Practice

A piranha fish lives mostly in ___.

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