Dumb(redirected from dumbs down)
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DEAF, DUMB, AND BLIND. A man born deaf, dumb, and blind, is considered an idiot. (q.v.) 1 Bl. Com. 304; F. N. B. 233; 2 Bouv. Inst. n. 2111.
DUMB. One who cannot speak; a person who is mute. See Deaf and dumb, Deaf, dumb, and blind; Mute, standing mute.