authority vs command

authority

noun
  • Power or right to make or enforce rules or give orders; or a position having such power or right. 

  • A reliable, definitive source of information on a subject. 

  • Persons, regarded collectively, who occupy official positions of power; police or law enforcement. 

  • Official permission; authorisation to act in some capacity on behalf of a ruling entity. 

  • A government-owned agency that runs a revenue-generating activity for public benefit. 

  • Status as a trustworthy source of information, reputation for mastery or expertise; or claim to such status or reputation. 

command

noun
  • A position of chief authority; a position involving the right or power to order or control. 

  • power of control, direction or disposal; mastery. 

  • A directive to a computer program acting as an interpreter of some kind, in order to perform a specific task. 

  • The right or authority to order, control or dispose of; the right to be obeyed or to compel obedience. 

  • An order to do something. 

  • Dominating situation; range or control or oversight; extent of view or outlook. 

  • A command performance. 

  • A body or troops, or any naval or military force, under the control of a particular officer; by extension, any object or body in someone's charge. 

  • The degree of control a pitcher has over his pitches. 

  • The act of commanding; exercise or authority of influence. 

verb
  • To order, give orders; to compel or direct with authority. 

  • To require with authority; to demand, order, enjoin. 

  • to dominate through ability, resources, position etc.; to overlook. 

  • To hold, to control the use of. 

  • To exact, compel or secure by influence; to deserve, claim. 

  • To have or exercise supreme power, control or authority over, especially military; to have under direction or control. 

How often have the words authority and command occurred in a corpus of books? (source: Google Ngram Viewer )