Definition of emperor noun from the Oxford Advanced Learner's Dictionary

 

emperor

 noun
noun
BrE BrE//ˈempərə(r)//
 
; NAmE NAmE//ˈempərər//
 
 
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  • the ruler of an empire the Roman emperors the Emperor Napoleon see also empress
  • Word Origin Middle English (especially representing the title given to the head of the Roman Empire): from Old French emperere, from Latin imperator ‘military commander’, from imperare ‘to command’, from in- ‘towards’ + parare ‘prepare, contrive’.Extra examples It was under the emperor Justinian that these advances were made. during the reign of the last emperor the emperor of Japan It is the tomb of the first real emperor of China, Emperor Qin Shi Huang.Idioms
    the emperor has no clothes
     
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    used to describe a situation in which everybody suddenly realizes that they were mistaken in believing that somebody/something was very good, important, etc. Soon investors will realize that the emperor has no clothes and there will be a big sell-off in stocks. From the story of The Emperor’s New Clothes by Hans Christian Andersen, in which the emperor is tricked into thinking he is wearing beautiful new clothes and everyone pretends to admire them, until a little boy points out that he is naked.
    See the Oxford Advanced American Dictionary entry: emperor