pi·rate – [pahy-ruh t] – noun, verb, -rat·ed, -rat·ing.
1. a person who robs or commits illegal violence at sea or on the shores of the sea.
2. a ship used by such persons.
3. any plunderer, predator, etc.: confidence men, slumlords, and other pirates.
4. a person who uses or reproduces the work or invention of another without authorization.

-verb used with object
5. to commit piracy upon; plunder; rob.
6. to take by piracy: to pirate gold.
7. to use or reproduce (a book, an invention, etc.) without authorization or legal right: to pirate hit records.
8. to take or entice away for one’s own use: Our competitor is trying to pirate our best salesman.

-verb used without object
9. to commit or practice piracy.