Bound'a-ry, n.

n. [See BOUNDER and BOUND.] That which indicates or fixes a limit or extent, as of a territory.

But still his native country lies Beyond the boundaries of the skies. Cotton.

Sensation and reflection are the boundaries of our thoughts. Locke.

Synonyms— Limit; bound; border; term; termination; barrier; verge; confines; precinct. Boundary is often used as synonymous with bound. But the real sense is, a visible mark designating a limit. Bound is the limit itself, or furthest point of extension, and may be an imaginary line; but boundary is the object indicating the limit. The two words are in ordinary use confounded.