adjacent may or may not imply contact but always implies absence of anything of the same kind in between.
a house with an adjacent garage
adjoining definitely implies meeting and touching at some point or line.
had adjoining rooms at the hotel
contiguous implies having contact on all or most of one side.
offices in all 48 contiguous states
juxtaposed means placed side by side especially so as to permit comparison and contrast.
a skyscraper juxtaposed to a church
Examples of adjoining in a Sentence
Adjective
the cows had broken through the fence and were grazing in the adjoining field
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Adjective
The adjoining parcel can remain an athletic field or be developed with a guesthouse or a separate residence; the lot could also be sold independently.—
Tori Latham,
Robb Report,
22 Oct. 2026 Its original residential use explains many of the details that have managed to survive to the present day, such as the wooden doors that can be seen in both the hotel’s main building and the adjoining restaurant.—
Condé Nast,
Condé Nast Traveler,
20 Oct. 2026 Over the weekend, the new Coach retail location opened in Leawood and marked the city’s first with an adjoining coffee shop, Coach Coffee Shop.—
Noelle Alviz-Gransee,
Kansas City Star,
20 Oct. 2026 One idea proposed has been to keep the bridge open to pedestrian and bike traffic and build an adjoining bridge, or nearby bridge, for cars.—
Talia Soglin,
Chicago Tribune,
13 Oct. 2026 See All Example Sentences for adjoining
Word History
Etymology
Adjective
Middle English adjoynyng, from present participle of adjoynen "to adjoin"