expression, suru verb (irregular)
disable; override; make invalid
Common in computing contexts for turning off features, disabling accounts, or overriding settings. Also used more broadly for nullifying or invalidating something.
設定で自動更新を無効にしてください。
Please disable automatic updates in the settings.
このボタンを押すと、アラームを無効にします。
Pressing this button disables the alarm.