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

Clearwater Analytics is an investment accounting, reporting and analytics software company headquartered in a nine-story building adjoining the Grove Plaza at 777 W. Main St. in Boise. —Angela Palermo, Idaho Statesman, 12 Feb. 2025

The two homes do not immediately adjoin Loyola’s campus. —Bob Goldsborough, Chicago Tribune, 3 Feb. 2025

Trump noted that North Carolina and adjoining Tennessee each supported him in the last election – the Volunteer State slightly more. —Bart Jansen, USA TODAY, 25 Jan. 2025

The order by state Insurance Commissioner Ricardo Lara protects homeowners inside the perimeters or adjoining ZIP codes of the Palisades and Eaton fires burning in Los Angeles County for one year following Gov. Gavin Newsom’s Jan. 7 emergency declaration, regardless of loss. —Darrell Smith, Sacramento Bee, 10 Jan. 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