contiguous
adjective
formal uk
/kənˈtɪɡ.ju.əs/ us
/kənˈtɪɡ.ju.əs/the contiguous United States The last two states to be admitted to the Union, Alaska and Hawaii, are not part of the contiguous United States.
contiguous with/to The two states are contiguous with/to each other, but the laws are quite different.
Synonym
neighbouring UK