[ verb fed-uh-reyt; adjective fed-er-it ]
See synonyms for: federatefederated on Thesaurus.com

verb (used with or without object),fed·er·at·ed, fed·er·at·ing.
  1. to unite in a federation.

  2. to organize on a federal basis.

  1. federated; allied.

Origin of federate

1665–75; <Latin foederātus leagued together, allied, equivalent to foeder- (nominative stem foedus) league + -ātus-ate1

Other words from federate

  • fed·er·a·tor, noun
  • non·fed·er·at·ed, adjective
  • re·fed·er·ate, verb, re·fed·er·at·ed, re·fed·er·at·ing.
  • un·fed·er·at·ed, adjective

Words Nearby federate

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use federate in a sentence

  • Either the two States federate and form a united State, or one of them conquers and annexes the other.

    Britain at Bay | Spenser Wilkinson

British Dictionary definitions for federate


  1. to unite or cause to unite in a federal union

  1. federal; federated

Derived forms of federate

  • federative, adjective

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