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

Plans also call for a private development adjoining the market, although specific details were not discussed on Monday. —Sarah Ritter, Kansas City Star, 2 July 2024

Some shots flew into a next-door neighbor’s adjoining apartment. —Dylan Lovan, Los Angeles Times, 2 Nov. 2024

Some shots flew into a next-door neighbor's adjoining apartment. —CBS News, 1 Nov. 2024

Starting closer to the trunk of your artificial tree, adjoin a small, real sprig to a fake branch with a few twists of wire. —Kristi Kellogg, Architectural Digest, 23 Oct. 2024

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

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