LEARNit Dictionary

overturn

verb
C1+
1
C1+
if something overturns, or if somebody overturns it, it turns into a position in which the top of it is where the bottom of it normally is or on its side
واژگون شدن, برگرداندن, سرنگون شدن, چپه کردن, واژگون کردن, سرنگون کردن
2
C1+
to officially decide that a legal decision, etc. is not correct, and to make it no longer legally recognized
لغو کردن, باطل کردن, مردود کردن
to overturn a decision/conviction/verdict
His sentence was overturned by the appeal court.
He hopes that councillors will overturn the decision.
3
to show that a belief or an idea is not correct
رد کردن, نقض کردن, ابطال نمودن, بی‌اعتبار کردن, رد عقیده
She completely overturned my preconceptions about film stars.
This argument seems convincing, but is easily overturned.