contiguous
adjective
- 1
very close or connected in space or time
contiguous events
immediate contact
- 2
having a common boundary or edge; abutting; touching
Rhode Island has two bordering states; Massachusetts and Conncecticut
the side of Germany conterminous with France
- 3
connecting without a break; within a common boundary
the 48 conterminous states
the contiguous 48 states
Also useful for “contiguous”:Crossword— A long fill for tough grids