A betrayal is when someone breaks their promise or trust with you, often in a way that hurts or disappoints you deeply. It can also mean to reveal a secret that was meant to remain hidden.
When people betray each other, it's usually because of some kind of conflict or disagreement. A friend might betray your trust by sharing something private without asking first, or an employee might betray their company's secrets for personal gain. Sometimes, betrayal is more about actions than intentions - for example, a cheating spouse can be said to have betrayed the marriage vows they promised to uphold. In general, when someone does something that breaks the bond of friendship, loyalty, or commitment, it can feel like a painful betrayal.
To deliver into the hands of an enemy by treachery or fraud, in violation of trust; to give up treacherously or faithlessly.
Example: an officer betrayed the city
