Open English Wordnet
Nouns
(n)plagiarist, plagiarizer, plagiariser, literary pirate, piratesomeone who uses another person's words or ideas as if they were his own
(n)pirate, buccaneer, sea robber, sea roversomeone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation
Verbs
(v)commandeer, hijack, highjack, piratetake arbitrarily or by force“The Cubans commandeered the plane and flew it to Miami”