Synonyms of adjoin

adjoin

verb

ə-ˈjȯin 

1

as in to join

to be adjacent to

the bedroom of their apartment adjoins their neighbor's living room

Synonyms & Similar Words

• join
• flank
• surround
• neighbor
• touch
• abut
• fringe
• march (with)
• verge (on)
• meet
• enclose
• bound
• border (on)
• butt (on or against)
• line
• fence
• connect (with)
• communicate (with)
• encircle
• skirt
• attach (to)
• link (with)
• converge
• margin
• contact
• embrace
• rim

2

as in to add

to join (something) to a mass, quantity, or number so as to bring about an overall increase

after the dictionary writer's talk, the principal adjoined a few remarks about her own love of words

Synonyms & Similar Words

• add
• annex
• append
• expand
• affix
• introduce
• tack (on)
• attach
• subjoin
• augment
• insert
• fasten
• tie
• increase
• extend
• compound
• inject
• multiply
• elongate
• enhance
• amplify
• graft
• complement
• reinforce
• enlarge
• infuse
• intensify
• tag
• prolong
• escalate
• aggrandize
• lengthen
• heighten
• enforce
• protract
• supply
• swell (up)
• maximize
• supplement
• magnify
• hitch
• strengthen
• beef (up)
• boost
• fix
• raise
• interfuse

Antonyms & Near Antonyms

• remove
• deduct
• separate
• subtract
• abate
• detach
• take off
• reduce
• cut
• sever
• disconnect
• diminish
• knock off
• lessen
• decrease
• lower
• bate
• excise
• disjoin
• curtail
• amputate
• abridge
• contract
• unfasten
• abbreviate
• shorten
• lop (off)
• cut back
• constrict
• compress
• condense
• retrench

Example Sentences

Recent Examples of adjoin

Several suites are in the mix, including a Palace Roof Suite with swoon-worthy scenery from its waterfront terrace and a Bosphorus Palace Suite that can connect to adjoining rooms to create a three-bedroom royal residence. — Condé Nast, Condé Nast Traveler, 2 June 2026

Rowbottom and Lindsey work side by side from adjoining desks in their lofted home office, a French bulldog named Jammy snoring between them. — Mariella Rudi, Los Angeles Times, 1 June 2026

Born in Knoxville, Tennessee, Henson moved to metro Atlanta as a toddler and grew up in Paulding County, with strong ties to adjoining Douglas County. — Nancy Badertscher, AJC.com, 7 May 2026

Investigators say the hiker became stranded after getting lost in the Sampson Mountain Wilderness section of Cherokee National Forest, which adjoins national forests in Virginia, North Carolina, and Georgia. — Mark Price, Charlotte Observer, 7 May 2026