adjoining

UK: /əˈdʒɔɪnɪŋ/ US: (ə joi′ning)

WordReference Random House Unabridged Dictionary of American English © 2025

ad•join•ing  (ə joi′ning), adj. 

1. being in contact at some point or line;
   located next to another;
   bordering;
   contiguous:
   the adjoining room; a row of adjoining town houses.

• adjoin + -ing² 1485–95

Synonyms

Adjoining, adjacent, bordering all mean near or close to something. Adjoining implies touching, having a common point or line:
an adjoining yard.
Adjacent implies being nearby or next to something else:
all the adjacent houses; adjacent angles.
Bordering means having a common boundary with something:
the farm bordering on the river.

Antonyms

separated.

Collins Concise English Dictionary © HarperCollins Publishers::

adjoining / əˈdʒɔɪnɪŋ/ adjective

1. being in contact; connected or neighbouring

WordReference Random House Learner's Dictionary of American English © 2025

ad•join /əˈdʒɔɪn/   v. 

1. to be close to or in contact (with);
   abut: [no object]
   Our rooms in the hotel adjoined.
   [~ + object]
   The lobby adjoined the dining room.

ad•join•ing, adj.: 

Our rooms were adjoining. Please book us into adjoining rooms.

See -junc-.

WordReference Random House Unabridged Dictionary of American English © 2025

ad•join  (ə join′), v.t. 

1. to be close to or in contact with;
   abut on:
   His property adjoins the lake.
2. to attach or append;
   affix.

v.i. 

3. to be in connection or contact:
   the point where the estates adjoin.

• Middle French ajoindre. See ad-, join
• Middle English a(d)joinen 1275–1325

Collins Concise English Dictionary © HarperCollins Publishers::

adjoin / əˈdʒɔɪn/ verb

1. to be next to (an area of land, etc)
2. (transitive) followed by to: to join; affix or attach

Etymology: 14th Century: via Old French from Latin adjungere, from ad- to + jungere to join