quash

verb
1
to officially say that a decision made by a court is no longer legally acceptable or correct
لغو کردن, باطل کردن, فسخ کردن
synonym overturn
2
to take action to stop something from continuing
متوقف کردن, سرکوب کردن, لغو کردن
The rumours were quickly quashed.
The government moved quickly to quash the revolt.
synonym suppress