acquit

verb
1
to decide and state officially in court that somebody is not guilty of a crime
تبرئه کردن, بی‌گناه اعلام کردن, رفع اتهام کردن
opposite convict
2
to perform or behave well, badly, etc.
عمل کردن به گونه ای خاص, رفتاری نشان دادن, به گونه ای خاص عمل کردن, رفتار کردن
He acquitted himself brilliantly in the exams.