mar. 1  to damage or spoil to a certain extent; render less perfect, attractive, useful, etc.; impair or spoil: That billboard mars the view. 2  to disfigure, deface, or scar: The scratch marred the table.
Here are all the possible meanings and translations of the word betrayal. Princeton's WordNet(0.00 / 0 votes)Rate this definition: treachery, betrayal, treason, perfidy(noun) an act of deliberate betrayal. betrayal(noun) the quality of aiding an enemy.
Full Definition of ALLEGIANCE. 1. a: the obligation of a feudal vassal to his liege lord b (1) : the fidelity owed by a subject or citizen to a sovereign or government (2) : the obligation of an alien to the government under which the alien resides.