American English

Definition of knight noun from the Oxford Advanced American Dictionary



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  1. 1(in the Middle Ages) a man of high social rank who had a duty to fight for his king. Knights are often shown in pictures riding horses and wearing armor. see also black knight, white knight
  2. 2(in Britain) a man who has been given a special honor by the king or queen and has the title Sir before his name compare baronet
  3. 3a piece used in the game of chess that is shaped like a horse's head
  4. Idioms
    a knight in shining armor (usually humorous)
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    a man who saves someone, especially a woman, from a dangerous situation
See the Oxford Advanced Learner's Dictionary entry: knight