adjoin

verb

ad·​join ə-ˈjȯin 

a-

adjoined; adjoining; adjoins

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

Synonyms

• abut
• border (on)
• butt (on or against)
• flank
• fringe
• join
• march (with)
• neighbor
• skirt
• touch
• verge (on)

Examples of adjoin in a Sentence

Her office adjoins the library.

The two rooms adjoin each other.

Recent Examples on the Web

Photo : Ian Alexander Nelson/Jump Visuals A den with outdoor access adjoins the primary bedroom. —Tori Latham, Robb Report, 18 Mar. 2025

The interiors are a treat no matter what time of day, though: The living room has a sectional made for movie nights and stargazing, the dining table seats eight, and a soaking tub adjoins the primary bedroom. —Dan Q. Dao, Architectural Digest, 8 Mar. 2025

The land adjoins her parents’ 140-acre property — her family has called Boyd home for almost 30 years. —Kate Marijolovic, Fort Worth Star-Telegram, 22 Feb. 2025

And for convenience and comfort alike, the Fairmont Scottsdale Princess resort adjoins the course and is the veritable lap of luxury. Passport: Explore the finest destinations and experiences around the world in the Forbes Passport newsletter. —David Weiss, Forbes, 7 Mar. 2025

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

Rhymes for adjoin

• benzoin
• bitcoin
• conjoin
• enjoin
• fibroin
• rejoin
• sirloin
• subjoin
• coin
• coyne
• groin
• join

Kids Definition

adjoin

verb

ad·​join ə-ˈjȯin 

a-

1

: to add or attach by joining

2

: to lie next to or in contact with