plagiarism vs piracy

plagiarism and piracy both are nouns.

Word	Noun	Adjective	Verb	Adverb
plagiarism	Yes	No	No	No
piracy	Yes	No	No	No

As nouns, plagiarism and piracy are synonyms defined as:

plagiarism and piracy: the act of plagiarizing; taking someone's words or ideas as if they were your own

Other synonyms of plagiarism include plagiarisation, plagiarization.

plagiarism (noun)	piracy (noun)
the act of plagiarizing; taking someone's words or ideas as if they were your own	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
a piece of writing that has been copied from someone else and is presented as being your own work	the act of plagiarizing; taking someone's words or ideas as if they were your own