adjoin

verb

ad·​join ə-ˈjȯin How to pronounce adjoin (audio)
a-
adjoined; adjoining; adjoins
Synonyms of adjoinnext

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

Examples of adjoin in a Sentence

Her office adjoins the library. The two rooms adjoin each other.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Accessibility Massive Caesars does accessibility right with ramps adjoining its various levels, accessible guest rooms with lots of space for power wheelchairs, and moveable chairs at slots machines and table games. Andrea Bennett, Condé Nast Traveler, 10 Feb. 2026 Further, nearby Walmart, Stop & Shop supermarket, Comfort Inn, and adjoining Motel 6 drive consistent traffic to the area, according to Marcus & Millichap. Staff Report, Hartford Courant, 7 Feb. 2026 As for the rental’s neighbors, the regulations, if approved, also stipulate that a short-term rental’s owner send a letter by mail to adjoining property owners informing them that the residence has been approved as a short-term rental at least one week before the first rental in a calendar year. Molly Morrow, Chicago Tribune, 8 Jan. 2026 But the town adjoining the base, Delta Junction, is small (with a 2020 population of 918) and has only a handful of food stores and restaurants. Davis Winkie, USA Today, 8 Jan. 2026 See All Example Sentences for adjoin

Word History

Etymology

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"

First Known Use

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

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

Browse Nearby Words

Cite this Entry

“Adjoin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adjoin. Accessed 13 Feb. 2026.

Kids Definition

adjoin

verb
ad·​join ə-ˈjȯin How to pronounce adjoin (audio)
a-
1
: to add or attach by joining
2
: to lie next to or in contact with

More from Merriam-Webster on adjoin

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