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.
1 An example of betray is when you tell secrets and betray trust. 2  An example of betray is when you sneeze and your enemy is then able to find you. 3  to help the enemy of (one's country, cause, etc.); be a traitor to.  to deliver or expose to an enemy traitorously.