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
His Hawaii holdings span thousands of acres, while his Lake Tahoe compound combines two adjoining lakefront estates.—
Abby Montanez,
Robb Report,
25 Aug. 2026 Two adjoining spaces on the ground floor served as a newsroom filled with desks.—
Cora Engelbrecht,
New Yorker,
24 Aug. 2026 These federal spaceports include Cape Canaveral Space Force Station and NASA’s Kennedy Space Center, which sit on adjoining property in Florida.—
Stephen Clark,
ArsTechnica,
21 Aug. 2026 In addition, an adjoining house—named Villa Ullastres—is available for guests seeking a separate and more private option while still being close to the heart of the hotel.—
Condé Nast,
Condé Nast Traveler,
20 Aug. 2026 See All Example Sentences for adjoining
Word History
Etymology
Adjective
Middle English adjoynyng, from present participle of adjoynen "to adjoin"