Dumb is an adjective meaning lacking the power of speech or exhibiting silence by choice or circumstance, or describing something mute or unintelligent in informal usage. It denotes an absence of voice or the lack of ability to express oneself verbally, and is often used colloquially to imply stupidity. In some contexts, it contrasts with 'speechless' or 'mute' and can carry humorous or pejorative connotations depending on tone.
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