| PIR | the act of plagiarizing |
|---|---|
| PIR | robbery on the high seas |
| PIR | small voraciously carnivorous freshwater fishes of South America that attack and destroy living animals |
| PIR | Italian novelist and playwright (1867-1936) |
| PIR | a genus of Thraupidae |
| PIR | common tanager of southwestern United States and Mexico |
| PIR | of western North America |
| PIR | the male is bright red with black wings and tail |
| PIR | of middle and southern United States |
| PIR | small voraciously carnivorous freshwater fishes of South America that attack and destroy living animals |
| PIR | a ship manned by pirates |
| PIR | someone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation |