What does "piracy" mean?

Piracy: (Common Law) Robbery on the high seas; the taking of property from others on the open sea by open violence; without lawful authority, and with intent to steal; -- a crime answering to robbery on land. Note: By statute law several other offenses committed on the seas (as trading with known pirates, or engaging in the slave trade) have been made piracy.

Additional senses

  1. 2."Sometimes used, in a quasi-figurative sense, of violation of copyright; but for this, infringement is the correct and preferable term." Abbott.

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