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annexed; annexing; annexes

transitive verb

: to attach as a quality, consequence, or condition
Many privileges were annexed exclusively to royalty.
archaic : to join together materially : unite
: to add to something earlier, larger, or more important
annexed a bibliography to the thesis
: to incorporate (a country or other territory) within the domain of a state
The U.S. annexed Texas in 1845.
: to obtain or take for oneself


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an·​nex ˈa-ˌneks How to pronounce annex (audio)
: something annexed as an expansion or supplement: such as
: an added stipulation or statement : appendix
approved the annex in the treaty
: a building that is attached to or near a larger building and usually used as part of it : wing
Historical photographs were on view in the library's annex.

Example Sentences

Verb The United States annexed Texas in 1845. The government planned to annex the islands. Noun The addition will be used as an annex to the library. We store our old files in the annex. an annex to the document
Recent Examples on the Web
Friday's attacks come as Russia has lost significant ground to a Ukrainian offensive in the country’s east, and as the Kremlin plans to annex a large area of Ukraine. WSJ, 30 Sep. 2022 The moves indicate an escalation in Russia’s apparent plans to annex swaths of Ukraine. Kelly Kasulis Cho, Washington Post, 22 Sep. 2022 Preliminary approval of plans by Top Hospitality call for a 118-room Residence Inn and a 125-room Courtyard by Marriott on a site Tinley Park plans to annex. Mike Nolan, Chicago Tribune, 6 Aug. 2022 Russian President Vladimir Putin has signed into law measures that claim to annex four Ukrainian regions into the Russian Federation, in violation of international law. Alexandra Meeks, CNN, 5 Oct. 2022 Putin signed treaties Friday to annex four occupied regions of Ukraine into the Russian Federation, in defiance of international law. Michael Biesecker, Fortune, 3 Oct. 2022 Putin signed treaties Friday to annex four occupied regions of Ukraine into the Russian Federation, in defiance of international law. Anchorage Daily News, 3 Oct. 2022 Saudi Arabia on Wednesday did vote in favor of a U.S.-backed United Nations resolution condemning Russia's attempt to annex parts of Ukraine. Ben Gittleson, ABC News, 13 Oct. 2022 Trustees did not discuss the amendment, and there was no mention prior to the 5-1 vote of U.S. Capital Development’s desire to annex 88 acres at Randall and Binnie roads into the village to build the Carpentersville Logistics Park. Gloria Casas, Chicago Tribune, 5 Oct. 2022
Last season, the winter market moved from the Domes annex on the south side to the second floor of a Deer District building downtown. Journal Sentinel, 12 Nov. 2022 On the road Arizona's road trip from Nov. 5-27 was scheduled to allow time for the Mullet Arena annex construction at Arizona State University. Arizona Republic, The Arizona Republic, 11 Nov. 2022 In addition to supplying power to the annex between 4 to 9 p.m., MOAB also can provide emergency backup during power outages. San Diego Union-Tribune, 24 Oct. 2022 Her mother-​in-law’s apartment—a triplex at the top of the six-story townhouse—had an annex where the couple’s young-adult children (who are still at home) could live while affording some privacy for the parents. ELLE Decor, 19 Oct. 2022 More recently, the annex at Rockway and Detroit avenues was torn down in order to create green space. Carol Kovach, cleveland, 11 Oct. 2022 The attackers soon targeted the annex and the American security operators fought them off for hours without reinforcements. Fox News, 11 Sep. 2022 Still, the attraction of an event like the tournament is visible in the crowded annex where Brickhouse is sitting. Chase Difeliciantonio, San Francisco Chronicle, 21 Aug. 2022 Should the Ukrainian counteroffensive fail and the Russians annex portions of southeast Ukraine, the war is far from over for the Russians. Vikram Mittal, Forbes, 15 Aug. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'annex.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History


Verb and Noun

Middle English, from Anglo-French annexer, from annexe attached, from Latin annexus, past participle of annectere to bind to, from ad- + nectere to bind

First Known Use


14th century, in the meaning defined at sense 1


15th century, in the meaning defined above

Time Traveler
The first known use of annex was in the 14th century

Dictionary Entries Near annex

Cite this Entry

“Annex.” Dictionary, Merriam-Webster, Accessed 26 Nov. 2022.

Kids Definition

annex 1 of 2


: to attach as an addition : append
: to add (a territory) to one's own territory to form a larger country
the United States annexed Texas in 1845
annexation noun


2 of 2


an·​nex ˈan-ˌeks How to pronounce annex (audio)
: something annexed
especially : an added part of a building

Legal Definition

: attach sense 2
correspondence annexed to the petition
a greenhouse annexed to the building
: to incorporate (as a territory) within a political domain
the district annexes only shards of 24 additional parishes Hays v. Louisiana, 839 F. Supp. 1188 (1993)
annexation noun

More from Merriam-Webster on annex

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