"piracy" in the noun 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
2. plagiarism, plagiarization, plagiarisation, piracy
the act of plagiarizing taking someone's words or ideas as if they were your own
Source: WordNet® (An amazing lexical database of English)
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