adjoining[adjective]Synonyms: connecting, abutting, adjacent, bordering, neighbouring, next door, touching 
Antonyms: detached 
English Thesaurus: next to, beside, by, next door, alongside, ... [TahlilGaran] English Synonym Dictionary ▲
 next to preposition very close to someone or something, with no other person, building, place etc in between: 
 I sat next to him at dinner.
 I sat next to him at dinner.  The hotel was right next to the airport.beside preposition
 The hotel was right next to the airport.beside preposition next to the side of someone or something: 
 Ella came and sat down beside me.
 Ella came and sat down beside me.  They were sitting beside the pool.by preposition
 They were sitting beside the pool.by preposition next to something – often used about being very close to a window, door, or the edge of something such as an area of water: 
 I saw him standing by the window.
 I saw him standing by the window.  Weymouth is a pretty little town by the sea.
 Weymouth is a pretty little town by the sea.  She lives by the river.next door adverb
 She lives by the river.next door adverb in the building or room next to yours, or next to another one: 
 The house next door is much bigger than ours.
 The house next door is much bigger than ours.  Have you met the people who’ve just moved in next door?alongside adverb, preposition
 Have you met the people who’ve just moved in next door?alongside adverb, preposition close to the side of something, especially a river, railway, boat, or vehicle: 
 I decided to take the path alongside the railway track.
 I decided to take the path alongside the railway track.  A police car pulled up alongside.adjacent adjective, adverb formal
 A police car pulled up alongside.adjacent adjective, adverb formal a building, room, or piece of land that is adjacent to another one is next to it: 
 They walked through a rose garden adjacent to the hospital.
 They walked through a rose garden adjacent to the hospital.  The blaze spread to two adjacent buildings.adjoining adjective formal
 The blaze spread to two adjacent buildings.adjoining adjective formal an adjoining room, building, or piece of land is one that is next to another one and is joined to it: 
 We had adjoining rooms at the hotel.
 We had adjoining rooms at the hotel. [TahlilGaran] English Thesaurus ▲