pirate vs piracy

pirate and piracy both are nouns.

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

pirate (noun)	piracy (noun)
a ship that is manned by pirates	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
someone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation	the act of plagiarizing; taking someone's words or ideas as if they were your own
someone who uses another person's words or ideas as if they were his own

pirate (verb)	piracy (verb)
take arbitrarily or by force
copy illegally; of published material