1. connecting without a break; within a common boundary - the 48 conterminous states - the contiguous 48 states • Syn: contiguous • Similar to: connected • Derivationally related forms: contiguity (for: contiguous) 2. being of equal extent or scope or duration • Syn: coextensive, coterminous • Similar to: commensurate 3. having a common boundary or edge; abutting; touching - 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 • Syn: adjacent, contiguous, neighboring • Similar to: connected • Derivationally related forms: contiguousness (for: contiguous), contiguity (for: contiguous), adjacency (for: adjacent)