Thesaurus

authorities

noun , plural of authority

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1 a person with a high level of knowledge or skill in a field
  • the leading authority on neural anatomy
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2 lawful control over the affairs of a political unit (as a nation)
  • the sheriff had authority over the whole county
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3 the power to direct the thinking or behavior of others usually indirectly
  • speaks with a persuasive authority on matters of public health
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4 the right or means to command or control others
  • by the authority vested in me, I now pronounce you married
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5 something (as a belief) that serves as the basis for another thing
  • I had good authority to believe that the information was correct
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6 something mentioned in a text as providing related and especially supporting information
  • the Bible is the sole authority for his impassioned defense of creationism
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