- a person who robs or commits illegal violence at sea or on the shores of the sea.
- a ship used by such persons.
- any plunderer, predator, etc.: confidence men, slumlords, and other pirates.
- a person who uses or reproduces the work or invention of another without authorization.
- a stream that diverts into its own flow the headwaters of another stream, river, etc.
- to commit piracy upon; plunder; rob.
- to take by piracy: to pirate gold.
- to use or reproduce (a book, an invention, etc.) without authorization or legal right: to pirate hit records.
- to take or entice away for one's own use: Our competitor is trying to pirate our best salesman.
- to commit or practice piracy.
- a person who commits piracy
- a vessel used by pirates
- (as modifier)
- a person who illicitly uses or appropriates someone else's literary, artistic, or other work
- a person or group of people who broadcast illegally
- (as modifier)
- to use, appropriate, or reproduce (artistic work, ideas, etc) illicitly