Learn That Word

Synonyms for Piracy (same or very similar meaning)

WordNet sense 1 (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):
buccaneering

WordNet sense 2 (the act of plagiarizing; taking someone's words or ideas as if they were your own):
plagiarism, plagiarisation, plagiarization


From the ODE community, based on WordNetadd/edit