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

A boundary is a border and it can be physical, such as a fence between two properties, or abstract, such as a moral boundary that society decides it is wrong to cross.

Boundary (topology), the closure minus the interior of a subset of a topological space; an edge in the topology of manifolds, as in the case of a 'manifold with boundary'

Dec 13, 2025 · Healthy boundaries can prevent stress, burnout, and resentment. Clear communication is essential when setting boundaries. Setting boundaries involves establishing emotional and …

Or doing things that make you feel unsafe, … That’s a boundary! Or saying things that make you feel hurt or gross, … Not in front of me! Whatever affects you most, you need to say something “Like...

Dec 13, 2022 · Healthy boundaries are the ultimate guide to successful relationships. Without healthy boundaries, relationships do not thrive—they result in feelings of resentment, disappointment, or …

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

Feb 27, 2026 · Boundary refers to a line that marks the limits of an area, a dividing line. For example, the fence around a park marks the boundary of the park. The misspelling “boundry” is a common …