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A device, usually hinged with a striking plate, used for knocking on a door.
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A person who knocks.
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A critic; one who disparages.
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(informal, derogatory) A person who knocks (denigrates) something.
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(slang, usually in the plural) A person's breast, especially if large.
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(especially Cardigan, in South Wales, archaic) A dwarf, goblin, or sprite imagined to dwell in mines and to indicate the presence of ore by knocking.
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(pinball) A mechanical device in a pinball table that produces a loud percussive noise.
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(dated, slang) A person who is strikingly handsome or otherwise admirable; a stunner.
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A large cockroach, especially Blaberus giganteus, of semitropical America, which is able to produce a loud knocking sound.
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(geology) A large, boulder-shaped outcrop of bedrock in an otherwise low-lying landscape, chiefly associated with a mélange.
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(slang) One who defaults on payment of a wager.
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(slang, Eastern African-American Vernacular) A gun.
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(slang, Eastern African-American Vernacular) An undercover policeman.