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.
n. 1. (Government, Politics & Diplomacy) violation or betrayal of the allegiance that a person owes his sovereign or his country, esp by attempting to overthrow the government; high treason. 2. any treachery or betrayal.