Simple past tense and past participle of muzzle.(verb)
Wearing a muzzle(adjective)
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Use "muzzled" in a sentence
"Steele will be muzzled is what they are really saying but that won't help."
"MS. MYERS: That they were somehow muzzled, which is the implication of the article."
"Gee sugarman, I guess you missed it when the scientists during the Bush Adminstration were "muzzled" when they went anywhere near stating "global warming"."