Adjective

• 1. connecting without a break; within a common boundary;

  "the 48 conterminous states"

  "the contiguous 48 states"

• 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"

• 3. of equal extent or scope or duration