an·​nex | \ ə-ˈneks , ˈa-ˌneks \
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 , -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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Other Words from annex


annexation \ ˌa-​ˌnek-​ˈsā-​shən \ noun
annexational \ -​shnəl , -​shə-​nᵊl \ adjective
annexationist \ -​sh(ə-​)nist \ noun

Synonyms & Antonyms for annex

Synonyms: Verb

add, adjoin, append, subjoin, tack (on)

Synonyms: Noun

addition, extension, penthouse

Antonyms: Verb

abate, bate, deduct, knock off, remove, subtract, take off

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Examples of annex in a Sentence


The United States annexed Texas in 1845. The government planned to annex the islands.


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

The City Council in December voted to annex 17 properties totaling about 575 acres near Homestead Lane/ 207th Street, south of the interstate. Lynn Horsley, kansascity, "Edgerton council OKs rezoning to allow expansion of huge warehouse district | The Kansas City Star," 27 Apr. 2018 Bennett wants to annex two-thirds of the West Bank, a step that would preclude a Palestinian state. Gregg Carlstrom, Newsweek, "The Fall of Benjamin Netanyahu and the Future of Israel," 15 Mar. 2018 Judge laid out plans for the city to annex an additional 525.389 total acres. David Taylor, Houston Chronicle, "Dayton council approves traffic study, continues annexation," 22 Mar. 2018 The council, in April of 2017, had already voted to annex 512 acres for the plant just a mile from Dale's main street. Emily Hopkins, USA TODAY, "Could this 'clean coal’ plant proposal be an answer to Indiana’s 17 billion tons of reserves?," 19 Mar. 2018 Photo: Ron Edmonds/Associated Press Iraqi leader Saddam Hussein had sent his forces into neighboring Kuwait in a bid to annex it in August 1990. Gerald F. Seib, WSJ, "The Courage of George H.W. Bush: Avoiding the Easy Path," 3 Dec. 2018 The development also would require officials to annex the area, just outside of the northeast side of Lake Zurich, into village limits, officials said. Phil Rockrohr,, "Proposed subdivision could house as many as 200 in Lake Zurich," 29 June 2018 The fate of Tulare County was up in the air when Draper's original proposal left the county out, presumably to be annexed to Nevada, and instead opted to pick Imperial County twice. CBS News, "Three Californias? Measure to split state heads to November ballot," 13 June 2018 That represents a key formal step toward allowing the city to annex the land and build on it. Tony Bizjak, sacbee, "Environmentalists sue to stop expansion near Highway 99," 5 June 2018

Recent Examples on the Web: Noun

The 17-acre property has several annexes, plus some 700 olive trees. J.s. Marcus, WSJ, "In a Struggling Italy, Florence Homes Enjoy a New Renaissance," 28 Nov. 2018 The annex houses the governor’s office, as well as the offices of legislators and their staffs. Melody Gutierrez,, "California lawmakers call in a $1.2 billion wrecking ball for their offices," 12 June 2018 Sydney and Walda Besthoff Sculpture Garden This five-acre sculpture garden is a park within City Park, and acts as an open-air annex to the wonderful New Orleans Museum of Art (NOMA). Paul Oswell, Condé Nast Traveler, "15 Best Things To Do In New Orleans," 4 Mar. 2018 Most of the more than 300 county residents who attended a Feb. 6 meeting at the Mitchell Park Domes annex opposed the plan. Don Behm, Milwaukee Journal Sentinel, "Milwaukee County Board buries plan to collect parking fees this year at parks and parkways," 15 Feb. 2018 Crucial to Sheba’s reign was said to to be the Kingdom’s Temple, documented to have once been her throne, internationally lauded for its majestic entrance, magnificent pillars and great annexes. Hollie Mckay, Fox News, "Archaeologists fear biblical artifacts, monuments won't survive Yemen war," 9 Aug. 2018 Court had been conducted in a former pizza restaurant until the annex was repaired. Karen Zurawski, Houston Chronicle, "Incumbent justice of the peace wins re-election in west Harris County," 23 May 2018 The bodies from Calatayud were placed in the Chapel of the Sepulcher, a small annex of concrete and marble located to the right of the altar. Matías Costa, Smithsonian, "The Battle Over the Memory of the Spanish Civil War," 28 June 2018 The latest burglary was at a Harris County courthouse annex on May 4. Samantha Ketterer, Houston Chronicle, "Deputies arrest three in ATM robbery at Harris County tax office," 22 May 2018

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

4 Feb 2019

Look-up Popularity

Time Traveler for annex

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

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More Definitions for annex



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)



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 , 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 \

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 \

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 \ 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

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