ad·​join | \ə-ˈjȯin, a-\
adjoined; adjoining; adjoins

Definition of adjoin 

transitive verb

1 : to add or attach by joining

2 : to lie next to or in contact with

intransitive verb

: to be close to or in contact with one another

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Synonyms & Antonyms for adjoin


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


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

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Examples of adjoin in a Sentence

Her office adjoins the library. The two rooms adjoin each other.

Recent Examples on the Web

The Presidential Suite at the Hilton President Kansas City hotel at 14th Street and Baltimore Avenue features an oversized master bedroom and adjoining marble bath. Tammy Ljungblad, kansascity, "For $3,000 you can book this luxurious Kansas City hotel suite | The Kansas City Star," 10 Apr. 2018 Besides the tasting room bar and adjoining patio, there's a lounge area tucked into a corner of the building, and nearly all of the seating offers a good view of the brewhouse and stainless-steel tanks. John Verive,, "Common Space Brewery and tap room opens in Hawthorne with plenty of promising brews," 6 Mar. 2018 The community -- with its lake named for an 18th-century frontier Indian fighter -- became part of adjoining Franklin Township, and according to some residents, so far the results seem to be working out. Brian Albrecht,, "Smoother roads, lower taxes for Brady Lake villagers a year after vote to disband community (photos)," 29 Apr. 2018 The second option is for Terminal B to adjoin the existing one. Matthew Ormseth,, "Bradley Airport Makeover: Five Takeaways For The Common Traveler," 9 May 2018 The Republic of Ireland is physically adjoined to its Northern counterpart, but is its own completely separate state. Martin Rogers, USA TODAY, "Why 'Brits' don't support England at the World Cup," 9 July 2018 Riley's point is that Boise has sought to plan its own growth efficiently and to defend itself against harm from new planned communities north and northwest of, and not adjoining, the city. Maria L. La Ganga, idahostatesman, "Stuck in traffic jams, asking who's to blame? The answer depends on who you ask.," 9 July 2018 That disaster occurred when the wall of an adjoining building fell on the thrift store’s roof during demolition., "1 dead in building collapse in North Philadelphia," 4 June 2018 Each room in the main chateau and adjoining buildings is done up differently; for the best views, the in-castle garden view suites are spectacular. Cnt Editors, Condé Nast Traveler, "Best New Hotels in the World," 1 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'adjoin.' 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 adjoin

14th century, in the meaning defined at transitive sense 1

History and Etymology for adjoin

Middle English ajoynen, adjoynen, borrowed from Anglo-French ajoindre, going back to Latin adjungere "to link up, yoke, add, attach," from ad- ad- + jungere "to join entry 1"

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Statistics for adjoin

Last Updated

29 Oct 2018

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Time Traveler for adjoin

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

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More Definitions for adjoin



English Language Learners Definition of adjoin

of a building, room, area of land, etc. : to be next to or joined with something


ad·​join | \ə-ˈjȯin \
adjoined; adjoining

Kids Definition of adjoin

: to be next to or in contact with The two rooms adjoin each other.

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Comments on adjoin

What made you want to look up adjoin? Please tell us where you read or heard it (including the quote, if possible).


noxious or harmful

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