Adjacent

adj. near; next; adjoining

n. device joined to another device through a direct connection (Computers)

Adjacent is an adjective meaning contiguous, adjoining or abutting.In geometry, adjacent sides of a polygon meet at a vertex and adjacent vertices of a polygon are joined by a side.In trigonometry the adjacent side of a right angled triangle is the cathetus next to the angle in question.
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Adjective
1. nearest in space or position; immediately adjoining without intervening space; "had adjacent rooms"; "in the next room"; "the person sitting next to me"; "our rooms were side by side"
(synonym) next, side by side(p)
(similar) close
2. having a common boundary or edge; touching; "abutting lots"; "adjoining rooms"; "Rhode Island has two bordering states; Massachusetts and Conncecticut"; "the side of Germany conterminous with France"; "Utah and the contiguous state of Idaho"; "neighboring cities"
(synonym) abutting, adjoining, conterminous, contiguous, neighboring(a)
(similar) connected
3. near or close to but not necessarily touching; "lands adjacent to the mountains"; "New York and adjacent cities"
(similar) near, close

adj. adjacent, neighboring, in the area of

(n.)
That which is adjacent.
  

(a.)
Lying near, close, or contiguous; neighboring; bordering on; as, a field adjacent to the highway.