copyright infringement

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The unauthorized use of copyrighted material in a manner that violates one of the copyright owner's exclusive rights, such as the right to reproduce or perform the copyrighted work, or to make derivative works that build upon it.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a violation of the rights secured by a copyright