Source : Webster's Revised Unabridged Dictionary (1913)

Agency \A"gen*cy\, n.; pl. {Agencies}. [agentia, fr. L. agens,
   agentis: cf. F. agence. See {Agent}.]
   1. The faculty of acting or of exerting power; the state of
      being in action; action; instrumentality.

            The superintendence and agency of Providence in the
            natural world.                        --Woodward.

   2. The office of an agent, or factor; the relation between a
      principal and his agent; business of one intrusted with
      the concerns of another.

   3. The place of business of am agent.

   Syn: Action; operation; efficiency; management.