ad ‧ ja ‧ cent AC /əˈdʒeɪs ə nt/ BrE AmE adjective
[ Date: 1400-1500 ; Language: Latin ; Origin: present participle of adjacere 'to lie near' , from ad- 'to' + jacere 'to lie' ]
a room, building, piece of land etc that is adjacent to something is next to it:
We stayed in adjacent rooms.
the building adjacent to the library
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▪ 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.
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.
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.
Weymouth is a pretty little town by the sea.
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.
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.
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.
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.