mute|mutes

看电影时请把手机静音。

Please ___mute your phone while watching the movie.

他在吉他上装了弱音器来减小音量。

He put ___mutes on his guitar to soften the sound.

这个孩子天生聋哑，无法说话。

The child was born deaf and ___mute, unable to speak.