The meaning of BOUNDARY is something that indicates or fixes a limit or extent. How to use boundary in a sentence.

BOUNDARY definition: a line or limit where one thing ends and another begins, or something that indicates such a line or limit. See examples of boundary used in a sentence.

BOUNDARY definition: 1. a real or imagined line that marks the edge or limit of something: 2. the limit of a subject or…. Learn more.

boundary A line that delineates surface areas for the purpose of facilitating coordination and deconfliction of operations between adjacent units, formations, or areas.

something that indicates bounds or limits, as a line: A mountain range forms a natural boundary between the two countries.

The boundary of an area of land is an imaginary line that separates it from other areas.

6 days ago · Noun boundary (plural boundaries) The dividing line or location between two areas.