Simple past tense and past participle of silence.(verb)
Made silent(adjective)
Fitted with a silencer(adjective)
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Use "silenced" in a sentence
"Though his attacker was using a silenced weapon, the word silenced did not mean completely devoid of sound and Harvath had developed at least a vague idea of where he was."
"But the process by which the media was silenced is troubling, and it, too, is something we should think about."
"The name silenced Susan; she felt her breath come short."