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.
The new building Musk posted about is in nearby Southaven, Mississippi, and adjoins the Colossus 2 facility, the Information reported earlier Tuesday, citing property records and a person familiar with the project. Bloomberg, Mercury News, 31 Dec. 2025 Members can also take advantage of the family program and book adjoining rooms at half price. Caitlin Gunther, Travel + Leisure, 25 Dec. 2025 Here, a marble island anchors the cooking space, which adjoins a more casual dining area and the family room. Tori Latham, Robb Report, 13 Dec. 2025 An impressive fitness center adjoins the spa. Susan Barnes, Southern Living, 10 Dec. 2025 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 3 Jan. 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

Last Updated: - Updated example sentences
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