authority
noun
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official permission or approval“authority for the program was renewed several times”authorization
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the power or right to give orders or make decisions“The judge has the authority to issue warrants.”authorization
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freedom from doubtsureness
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an authoritative written work“this book is the final authority on the life of Milton”
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an administrative unit of governmentagency
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an expert whose views are taken as definitive“I am an authority on corporate law.”
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(usually plural) persons who exercise (administrative) control over others