noun: robbery on the high seas; taking a ship or its cargo away from the control of those who are legally entitled to it
noun: the act of plagiarizing; taking someone's words or ideas as if they were your own
1. The act or crime of a pirate.
2. (Common Law) Robbery on the high seas; the taking of property from others on the open sea by open violence; without lawful authority, and with intent to steal; - a crime answering to robbery on land.