Meaning : Nearest in space or position. Immediately adjoining without intervening space.
Example :
Had adjacent rooms.
In the next room.
The person sitting next to me.
Our rooms were side by side.
Synonyms : next, side by side
Meaning : Having a common boundary or edge. Abutting. Touching.
Example :
Rhode Island has two bordering states; Massachusetts and Connecticut.
The side of Germany conterminous with France.
Utah and the contiguous state of Idaho.
Neighboring cities.
Synonyms : conterminous, contiguous, neighboring
Meaning : Near or close to but not necessarily touching.
Example :
Lands adjacent to the mountains.
New York and adjacent cities.