[ verb uh-neks, an-eks; noun an-eks, -iks ]
See synonyms for: annexannexed on

verb (used with object)
  1. to attach, append, or add, especially to something larger or more important.

  2. to incorporate (territory) into the domain of a city, country, or state: Germany annexed part of Czechoslovakia.

  1. to take or appropriate, especially without permission.

  2. to attach as an attribute, condition, or consequence.

nounAlso especially British, an·nexe.
  1. something annexed.

  2. a subsidiary building or an addition to a building: The emergency room is in the annex of the main building.

  1. something added to a document; appendix; supplement: an annex to a treaty.

Origin of annex

First recorded in 1350–1400; (verb) Middle English, from Anglo-French, Old French annexer, from Medieval Latin annexāre, derivative of Latin annexus “tied to,” past participle of annectere (see annectent); (noun) from French annexe or noun use of verb

Other words from annex

  • an·nex·a·ble, adjective
  • non·an·nex·a·ble, adjective
  • pre·an·nex, verb (used with object)
  • re·an·nex, verb (used with object)
  • un·an·nex·a·ble, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use annex in a sentence

British Dictionary definitions for annex


verb(æˈnɛks) (tr)
  1. to join or add, esp to something larger; attach

  2. to add (territory) by conquest or occupation

  1. to add or append as a condition, warranty, etc

  2. to appropriate without permission

  1. a variant spelling (esp US) of annexe

Origin of annex

C14: from Medieval Latin annexāre, from Latin annectere to attach to, from nectere to join

Derived forms of annex

  • annexable, 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