This is the 12113th most frequent Russian word.
измену
"Измену" in English means "betrayal" or "infidelity."
In this sentence, the word 'измену' is used to denote an act of betrayal in a personal or emotional context.
Он простил её за измену.
He forgave her for the betrayal.
Here, 'измену' refers to treason, a form of betrayal against one's nation or principles.
Политик обвинил оппозицию в измене.
The politician accused the opposition of treason.
In this example, the word 'измена' is used in a general reflective statement about betrayals, specifically within friendships.