denounce

verb
C1+
1
C1+
to strongly criticize somebody/something that you think is wrong, illegal, etc.
محکوم کردن, نکوهش کردن, انتقاد شدید کردن
2
C1+
to tell the police, the authorities, etc. about somebody’s illegal political activities
لو دادن, گزارش دادن, افشا کردن
They were denounced as spies.
Many people denounced their neighbours to the secret police.
Someone in the village must have denounced them to the authorities.