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

Wall-to-wall carpet is best suited for private spaces like bedrooms, adjoining closets, a lounging area like a finished basement, and kid's rooms and playrooms. —Maria Sabella, Better Homes & Gardens, 22 Sep. 2024

Within the space is a dining area that adjoins a gourmet kitchen spotlighted by an eat-in island equipped with seats that swivel around to capture the mesmerizing vistas. —Wendy Bowman, Robb Report, 20 Sep. 2024

The new Picnic Boat 39 features three separate but adjoined entertaining areas: the aft deck, the cockpit, and the new foredeck. —Rachel Cormack, Robb Report, 24 July 2024

Those who call for defending democracy and freedom in the states adjoining Russia must be realistic about the consequences of trying to do so. —Rajan Menon, Foreign Affairs, 29 Feb. 2016

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