Meaning of piracy

pi•ra•cy

Pronunciation: (pī'ru-sē), [key]
— pl. -cies.
  1. practice of a pirate; robbery or illegal violence at sea.
  2. the unauthorized reproduction or use of a copyrighted book, recording, television program, patented invention, trademarked product, etc.: The record industry is beset with piracy.
  3. Also calleddiversion of the upper part of one stream by the headward growth of another.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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