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Verb: authorise  'o-thu,rIz
Usage: Brit (N. Amer: authorize)
  1. Give or delegate power or authority to
    "She authorised her assistant to sign the papers";
    - empower, authorize
  2. Grant authorization or clearance for
    "The rock star never authorised this slanderous biography";
    - authorize, pass, clear

Derived forms: authorised, authorises, authorising

Type of: allow, appoint, charge, countenance, let, permit

Encyclopedia: Authorise