In political geography, an imaginary line between two nations, separating the imaginary rights of one from the imaginary rights of the other.

That which indicates or fixes a limit or extent, or marks a bound, as of a territory; a bounding or separating line; a real or imaginary limit.

A separation, natural or artificial, which marks the division of two contiguous properties.

the "fence", real or on paper only, which separates two adjoining properties

In thermodynamics, the boundary separates the system from its surroundings.

Boundary - A specific point in a specific sequence of stratified rock that serves to separate time units, for example, the Pennsylvanian-Permian boundary.

Areas conjured by Zedd where a section of the Underworld also exists in the world of life simultaneously. The Boundaries are invisible unless contacted, when they give off a green glow. One Boundary separated Westland from The Midlands and one separated The Midlands from D'Hara. Another boundary separated the land of Bandakar from the rest of the world. To enter any of the boundaries meant certain death.

in the GMAP procedure, a separating line or point that distinguishes between two or more unit areas or segments.

Border line or exterior of a described parcel.

the border of a region The above box has one boundary that runs along all four sides.

The line that divides or acts as a legal border between adjacent properties.

A border around a market area that is being studied