DICT.TW Dictionary Taiwan

 knock·er n.
 1. One who, or that which, knocks; specifically, an instrument, or kind of hammer, fastened to a door, to be used in seeking for admittance.
 Shut, shut the door, good John ! fatigued, I said;
 Tie up the knocker; say I'm sick, I'm dead.   --Pope.
 2. A person strikingly handsome, beautiful, or fine; one who wins admiration; a “stunner.” [Slang.]
 3.  A species of large cockroach, especially Blabera gigantea, of semitropical America, which is able to produce a loud knocking sound.
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