消音

消音	xiāo yīn	to silence
消	xiāo	to diminish; to subside / to consume; to reduce / to idle away (the time) / (after 不 or 只 or 何 etc) to need; to require; to take
音	yīn	sound / noise / note (of musical scale) / tone / news / syllable / reading (phonetic value of a character)