fiat

/ˈfiːət/
noun
  1. An official order or decision made by someone in authority, often without discussion or agreement from others.
    • The company's CEO used a fiat to change the work schedule overnight.
    • The new dress code was implemented by fiat, without any input from the students.
    • The president issued a fiat banning the use of plastic bags in the city.
Antonyms
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