betrayal
//bɪˈtreɪ.əl//
Noun
betrayalSingular
betrayalsPlural
1
The act of being disloyal or unfaithful to someone who trusts you, especially by revealing secrets or breaking a promise.
His betrayal of her trust hurt her deeply.
2
The violation of a person's trust or confidence, often causing emotional harm.
The betrayal by her closest friend left her heartbroken.