What does adjoined mean?
"Adjoined" is the past tense and past participle of the verb "adjoin," meaning to be situated immediately next to something else, usually in physical contact or sharing a common boundary. It appears most often in descriptions of buildings and spaces: a bedroom may be adjoined to a bathroom, a garden adjoined to a house, or two countries adjoined along a border. The word carries a precise, slightly formal tone, favored in architectural writing, real estate listings, and legal or geographical description where "next to" would seem too casual. It derives from Latin iungere, "to join," via Old French joindre, making it a cousin of words like "junction" and "yoke." A related sense applies to interior spaces connected by a shared door, as in adjoining hotel rooms. For anyone describing spatial relationships with accuracy, "adjoined" offers a compact, exact alternative to vaguer phrasing.
verbPast tense and past participle of the verb "adjoin": to be next to or in contact with something, typically sharing a common boundary or wall.
- To be physically next to or in contact with something, sharing a boundary or wall.
- (Of rooms or spaces) To be connected by a shared door or opening.
"The hotel room adjoined the suite, so the family could move freely between them."
"The kitchen adjoined the dining room, separated only by a wide archway."
"Our rooms adjoined, which made it easy to keep an eye on the children."
When two hotel rooms are "adjoined," they share a door — a fact travelers have relied on since the word entered English in the 15th century.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of adjoined
"Adjoined" comes from the verb "adjoin," which entered English in the late Middle Ages (15th century) from Old French "ajoindre," itself from Latin "adjungere," meaning "to join to" (ad-, "to," plus iungere, "to join"). The Latin root iungere also gives English "junction," "juncture," and, through Germanic borrowing, "yoke." The word has retained its core spatial meaning of physical contact or shared boundary throughout its history.
Related word forms
How adjoined is actually used
Mostly used in formal or descriptive writing about architecture, real estate, and geography. In everyday speech, "next to" is more common; "adjoined" tends to appear when precision about physical contact matters.
Easily confused with adjoined
"Adjoining" is the present participle/adjective form describing things currently next to each other, while "adjoined" is the past tense or past participle of the verb.
"Conjoined" means joined together into one body or unit, whereas "adjoined" means merely positioned next to or touching.