Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun piracy

2 senses of piracy

Sense 1
piracy, buccaneering -- (hijacking on the high seas or in similar contexts; taking a ship or plane away from the control of those who are legally entitled to it; "air piracy")
       => highjacking, hijacking -- (robbery of a traveller or vehicle in transit or seizing control of a vehicle by the use of force)

Sense 2
plagiarism, plagiarization, plagiarisation, piracy -- (the act of plagiarizing; taking someone's words or ideas as if they were your own)
       => copyright infringement, infringement of copyright -- (a violation of the rights secured by a copyright)