contiguous

This term describes a physical relationship of immediate adjacency where there is no gap or intervening space between two entities. It is frequently employed in legal, geographical, and technical contexts to define boundaries that meet exactly, such as bordering states or memory blocks in computing. While similar to adjacent, contiguous implies a more seamless or unbroken connection. It carries a sense of continuity, suggesting that the objects form a single, connected mass or sequence rather than just being near one another.