quash
🇺🇸
/kwɑːʃ/
🇬🇧
/kwɒʃ/
To declare a legal decision invalid or to declare it not legally acceptable or correct.
The Court of Appeal quashed his conviction, stating that there was insufficient evidence.
To put an end to something, especially rumors or rebellions, by taking decisive action.
The government took immediate steps to quash the rebellion before it spread further.