being in close formal or informal association; related: a letter sent to all affiliated clubs; a radio network and its affiliated local stations.

Origin of affiliated

First recorded in 1785–95; affiliate + -ed2
Related formsnon·af·fil·i·at·ed, adjectiveun·af·fil·i·at·ed, adjective


[verb uh-fil-ee-eyt; noun uh-fil-ee-it, -eyt]

verb (used with object), af·fil·i·at·ed, af·fil·i·at·ing.

to bring into close association or connection: The research center is affiliated with the university.
to attach or unite on terms of fellowship; associate (usually followed by with in U.S. usage, by to in Brit. usage): to affiliate with the church.
to trace the descent, derivation, or origin of: to affiliate a language.
to adopt.
Law. to fix the paternity of, as an illegitimate child: The mother affiliated her child upon John Doe.

verb (used without object), af·fil·i·at·ed, af·fil·i·at·ing.

to associate oneself; be intimately united in action or interest.


a branch organization.
  1. a business concern owned or controlled in whole or in part by another concern.
  2. a subsidiary.
a person who is affiliated; associate; auxiliary.

Origin of affiliate

1755–65; < Latin affīliātus adopted as son (past participle of affīliāre), equivalent to af- af- + fīli(us) son + -ātus -ate1
Related formsaf·fil·i·a·ble [uh-fil-ee-uh-buh l] /əˈfɪl i ə bəl/, adjectiveaf·fil·i·a·tive [uh-fil-ee-ey-tiv, -fil-ee-uh-] /əˈfɪl iˌeɪ tɪv, -ˈfɪl i ə-/, adjectivenon·af·fil·i·ate, nounnon·af·fil·i·at·ing, adjectivepre·af·fil·i·ate, nounpre·af·fil·i·ate, verb, pre·af·fil·i·at·ed, pre·af·fil·i·at··af·fil·i·ate, verb, re·af·fil·i·at·ed, re·af·fil·i·at·ing. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for affiliated

Contemporary Examples of affiliated

Historical Examples of affiliated

  • "The same, in fact, I am affiliated to," remarked the student.

    Under Western Eyes

    Joseph Conrad

  • "He may be affiliated to the police," was the thought that passed through his mind.

    Under Western Eyes

    Joseph Conrad

  • Late in 1585 the Theatre was affiliated with the adjacent Curtain.

    Shakespearean Playhouses

    Joseph Quincy Adams

  • He's affiliated with crooks who operate all over the country.

    The Mask

    Arthur Hornblow

  • In blood, the Mongasques are affiliated to their Provenal and Italian neighbors.

    Riviera Towns

    Herbert Adams Gibbons

British Dictionary definitions for affiliated


verb (əˈfɪlɪˌeɪt)

(tr; foll by to or with) to receive into close connection or association (with a larger body, group, organization, etc); adopt as a member, branch, etc
(foll by with) to associate (oneself) or be associated, esp as a subordinate or subsidiary; bring or come into close connectionhe affiliated himself with the Union

noun (əˈfɪlɪɪt, -ˌeɪt)

  1. a person or organization that is affiliated with another
  2. (as modifier)an affiliate member
Derived Formsaffiliation, noun

Word Origin for affiliate

C18: from Medieval Latin affīliātus adopted as a son, from affīlīare, from Latin filius son
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 affiliated



1761, from Latin affiliatus, past participle of affiliare "to adopt" (see affiliation). Outside legal use, always figurative. Related: Affiliated; affiliating.



1858, from affiliate (v.).



1846, from affiliate (v.).

Online Etymology Dictionary, © 2010 Douglas Harper