verb (used with object), au·thor·ized, au·thor·iz·ing.

to give authority or official power to; empower: to authorize an employee to sign purchase orders.
to give authority for; formally sanction (an act or proceeding): Congress authorized the new tax on tobacco.
to establish by authority or usage: an arrangement long authorized by etiquette books.
to afford a ground for; warrant; justify.

Also especially British, au·thor·ise.

Origin of authorize

1350–1400; earlier auctorize < Medieval Latin auctōrizāre; replacing Middle English autorisen < Middle French autoriser < Medieval Latin See author, -ize
Related formsau·thor·iz·a·ble, adjectiveau·thor·iz·er, nounde·au·thor·ize, verb (used with object), de·au·thor·ized, de·au·thor·iz·ing.mis·au·thor·ize, verb (used with object), mis·au·thor·ized, mis·au·thor·iz·ing.pre·au·thor·ize, verb (used with object), pre·au·thor·ized, pre·au·thor·iz··au·thor·ize, verb (used with object), re·au·thor·ized, re·au·thor·iz·ing.self-au·thor·iz·ing, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for authorise

Contemporary Examples of authorise

Historical Examples of authorise

  • It was at the time when the Chamber was asked to authorise the issue of lottery stock.

  • To authorise the Prince to accept the government of another State.


    Frank Fox

  • I can write again by the parcel, if you authorise me to send it.

    Principle and Practice

    Harriet Martineau

  • Do you authorise me to speak—a little—as if I have an interest?

    The Outcry

    Henry James

  • And remember also that I do not authorise you in any way to resume this conversation.

    The Man

    Bram Stoker

British Dictionary definitions for authorise



verb (tr)

to confer authority upon (someone to do something); empower
to permit (someone to do or be something) with official sanctiona dealer authorized by a manufacturer to retail his products
Derived Formsauthorization or authorisation, nounauthorizer or authoriser, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for authorise

chiefly British English spelling of authorize (q.v.); for suffix, see -ize. Related: Authorised; authorising.



"give formal approval to," late 14c., autorisen, from Old French autoriser "authorize, give authority to" (12c.), from Medieval Latin auctorizare, from auctor (see author (n.)). Modern spelling from 16c. Related: Authorized; authorizing.

Online Etymology Dictionary, © 2010 Douglas Harper