an·​nex | \ ə-ˈneks How to pronounce annex (audio) , ˈa-ˌneks How to pronounce annex (audio) \
annexed; annexing; annexes

Definition of annex

 (Entry 1 of 2)

transitive verb

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


an·​nex | \ ˈa-ˌneks How to pronounce annex (audio) , -niks\

Definition of annex (Entry 2 of 2)

: something annexed as an expansion or supplement: such as
a : an added stipulation or statement : appendix approved the annex in the treaty
b : 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.

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Synonyms & Antonyms for annex

Synonyms: Verb

Synonyms: Noun

Antonyms: Verb

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Examples of annex in a Sentence

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 annexe to the document
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Recent Examples on the Web: Verb Russia later annexed it, provoking Western sanctions against Moscow. Washington Post, "Ukrainian leader felt Trump pressure before taking office," 24 Oct. 2019 In 1515, much of Navarre was annexed to the Crown of Castile and became part of what would become modern Spain. Erin Blakemore, National Geographic, "How the Basques became an autonomous community within Spain," 24 Oct. 2019 Russia later annexed it, provoking Western sanctions against Moscow., "KYIV, Ukraine (AP) — More than two months before the phone call that launched the impeachment inquiry into President Donald Trump, Ukraine’s newly elected leader was already worried about pressure from the U.S. president to investigate his Democratic rival Joe Biden.," 24 Oct. 2019 Russia later annexed it, provoking Western sanctions against Moscow. NBC News, "Zelenskiy worried about Trump pressure before taking office," 23 Oct. 2019 In 2014, masked Russian troops took control of Ukraine's Crimean Peninsula and later annexed it, provoking Western sanctions against Moscow. Michael Biesecker,, "Ukrainian President Volodymyr Zelenskiy felt pressure from Trump months before July call on Biden investigation, sources say," 23 Oct. 2019 At the time Russian President Vladimir Putin annexed Ukraine’s Crimean peninsula and the war was breaking out in Donbas, Ukraine’s armed forces and its equipment had been stripped down and sold off under then-President Viktor Yanukovich. Sabra Ayres, Los Angeles Times, "As Ukraine waited for U.S. assistance, death toll on eastern front line grew," 16 Oct. 2019 In 2014, Russia annexed Ukraine’s Crimean Peninsula and threw its support behind a separatist insurgency in eastern Ukraine following the ouster of Ukraine’s Moscow-friendly leader, moves that triggered bruising Western sanctions. San Diego Union-Tribune, "Kremlin relishes US pullback from Syria, turmoil in Ukraine," 13 Oct. 2019 Russia has annexed Crimea, a part of Ukraine, and continues to foment a separatist conflict in eastern Ukraine. Author: Greg Miller, Greg Jaffe, Ashley Parker, Anchorage Daily News, "Trump involved Pence in efforts to pressure Ukraine’s leader, officials say," 2 Oct. 2019 Recent Examples on the Web: Noun As the days went on, Palestinians saw how much Israeli Prime Minister Benjamin Netanyahu was willing to secure an electoral victory, including vowing to annex West Bank settlements. Dalia Hatuqa / Ramallah, Time, "'Less Space to Breathe.' How Palestinians Are Responding to Netanyahu’s West Bank Annexation Plans," 13 Sep. 2019 The panic button system will be upgraded through the courthouse, the courthouse annex and the visitation center, allowing it to be used by courthouse staff, Clerk’s Office staff and State’s Attorney’s Office staff. Catalina Righter,, "Commissioners agree to fund security upgrades for Carroll County Circuit Court," 6 Sep. 2019 Top stops include Grass Roots Antiques, at 12 Main St. North, with a consignment annex, and Mill House, a 17th-century former gristmill, now filled with English and French furniture and custom pieces. Pamela Wright,, "When in Connecticut, head for the Hills," 28 Aug. 2019 There were reportedly conditions in an annex that the Taliban would be very unlikely to meet, giving us the leeway to put the brakes on our withdrawal. Nr Editors, National Review, "The Week," 12 Sep. 2019 The old theater has been used for several years as an annex to Leon & Lulu next-door and will continue to be partially used for retail space. Susan Selasky, Detroit Free Press, "Three Cats restaurant about to open in former Clawson movie theater," 11 Sep. 2019 Anyway, none of this will stop me from taking those dentistry courses at the adult learning annex. Gary Gramling,, "All Eyes on Trubisky, the Trouble With Counting on Turnovers, What Is Philly’s Secondary?," 15 Sep. 2019 Members of the annex, however, kept returning to Lafayette Park, putting off household chores, work responsibilities and spending time with spouses and friends. Patricia Sullivan, Washington Post, "White House protesters raise a ruckus for a year, dubbing presidential mansion the ‘Kremlin annex’," 2 Aug. 2019 In 2012, a mob armed with guns and grenades launched a fiery nightlong attack on a US diplomatic outpost and a CIA annex in Benghazi, Libya, killing US Ambassador Chris Stevens and three other Americans., "In 1789, Alexander Hamilton was appointed the first US Secretary of the Treasury.," 11 Sep. 2019

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.

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First Known Use of annex


14th century, in the meaning defined at sense 1


1501, in the meaning defined above

History and Etymology for annex

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

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Statistics for annex

Last Updated

11 Nov 2019

Time Traveler for annex

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

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More Definitions for annex


How to pronounce annex (audio) How to pronounce annex (audio)

English Language Learners Definition of annex

 (Entry 1 of 2)

: to add (an area or region) to a country, state, etc. : to take control of (a territory or place)


How to pronounce annex (audio)

English Language Learners Definition of annex (Entry 2 of 2)

: a building that is attached to or near a larger building and usually used as part of it
chiefly British : a section or statement added at the end of a document


an·​nex | \ ə-ˈneks How to pronounce annex (audio) , ˈa-ˌneks\
annexed; annexing

Kids Definition of annex

 (Entry 1 of 2)

: to add (something) to something else usually so as to become a part of it The United States annexed Texas and it became a state.


an·​nex | \ ˈa-ˌneks How to pronounce annex (audio) \

Kids Definition of annex (Entry 2 of 2)

: a building or part of a building attached to or near another building and considered part of it a school annex
an·​nex | \ ə-ˈneks, ˈa-ˌneks How to pronounce annex (audio) \

Legal Definition of annex

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

Other Words from annex

annexation \ ˌa-​nek-​ˈsā-​shən How to pronounce annexation (audio) \ noun

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More from Merriam-Webster on annex

Thesaurus: All synonyms and antonyms for annex

Spanish Central: Translation of annex

Nglish: Translation of annex for Spanish Speakers

Britannica English: Translation of annex for Arabic Speakers

Comments on annex

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an agreement to stop fighting a war

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