IPA: /ʌnˈmjuːt/
KK: /ʌnˈmjut/
To turn the sound back on after it has been turned off or silenced.
Please unmute your microphone so we can hear you.
Past: unmuted
Past Participle: unmuted
Unmute → It is formed from "un-" (meaning not) and "mute" (from Latin "mutus", meaning silent or unable to speak). The word "unmute" means to not be silent or to enable sound after being muted.
Think of 'not' ('un-') being added to 'silent' ('mute') — that's why unmute means to allow sound again.