literary pirate li·te·ra·rypirate uncommon noun 1. someone who uses another person''s words or ideas as if they were his own Synonymsplagiaristplagiarizerplagiariserliterary piratepirate Related words Word family pirateplagiariseplagiarize Broader terms thief WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.