He was soon to be King. He was a thief looking for revenge. A story in which a Prince falls for a thief being held hostage in his prison. king kɪŋ/ noun 1. the male ruler of an independent state, especially one who inherits the position by right of birth. All rights reserved. Although plagiarism is not a criminal or civil offense, plagiarism is illegal if it infringes an author's intellectual property rights, including copyright or trademark. For example, the owner of a copyright can sue a plagiarizer in federal court for copyright violation.