plural piracies
Definition of piracy
1
: an act of robbery on the high seas
also
: an act resembling such robbery
2
: robbery on the high seas
3a
: the unauthorized use of another's production, invention, or conception especially in infringement of a copyright
b
: the illicit accessing of broadcast signals
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Merriam-Webster unabridged
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Time Traveler for piracy
The first known use of piracy was in 1537
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