verb take arbitrarily or by force.
— synonyms: commandeer, hijack, highjack
noun someone who uses another person's words or ideas as if they were his own.
— synonyms: plagiarist, plagiarizer, plagiariser, literary_pirate
noun someone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation.
— synonyms: buccaneer, sea_robber, sea_rover
noun a ship that is manned by pirates.
— synonyms: pirate_ship