mutes

verb

Makes a sound quieter or completely silent, often electronically or mechanically.

"She mutes the television during phone calls."

noun

Devices used to soften or alter the sound of a musical instrument.

"The trumpets used mutes for a softer passage."

Thesaurus

Synonyms: mute, unspoken, tongueless, inarticulate, silent, wordless, unarticulate, muffle, dull, tone down, damp, dampen