boundary
noun
bound·ary
ˈbau̇n-d(ə-)rē 
plural boundaries
: something that indicates or fixes a limit or extent
Those two trees mark the boundary of our property.
the mountain range that forms the country's northern boundary
boundarylessness
noun
Examples of boundary in a Sentence
Those two trees mark the boundary of our property.
The river forms the country's western boundary.
at the boundary between fact and fiction
You need to set boundaries with your children.
Did he violate the boundaries of the doctor-patient relationship?
Recent Examples on the Web
Some disappointed fans lingered near the barricades and boundaries police had set up and were enforcing.
—
Meriam Bouarrouj,
NBC news,
4 July 2026
Money, trust, emotional boundaries or an obligation could demand more of your attention today.
—
Valerie Mesa,
PEOPLE,
3 July 2026
But at this point in her career, Spiro could greatly benefit from having collaborators who can urge her to push past the boundaries that hold her just out of reach on Visitor.
—
Larisha Paul,
Rolling Stone,
3 July 2026
The organization has since worked to better align the international promotion of French films, series, animation, documentaries and audiovisual programs at a time when boundaries between formats and platforms continue to blur.
—
Elsa Keslassy,
Variety,
3 July 2026
See All Example Sentences for boundary
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Meriam Bouarrouj,
NBC news,
4 July 2026
Money, trust, emotional boundaries or an obligation could demand more of your attention today.
—
Valerie Mesa,
PEOPLE,
3 July 2026
But at this point in her career, Spiro could greatly benefit from having collaborators who can urge her to push past the boundaries that hold her just out of reach on Visitor.
—
Larisha Paul,
Rolling Stone,
3 July 2026
The organization has since worked to better align the international promotion of French films, series, animation, documentaries and audiovisual programs at a time when boundaries between formats and platforms continue to blur.
—
Elsa Keslassy,
Variety,
3 July 2026
See All Example Sentences for boundary
Cite this Entry
“Boundary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/boundary. Accessed 5 Jul. 2026.
Copy CitationKids Definition
boundary
noun
bound·ary
ˈbau̇n-d(ə-)rē
plural boundaries
: something that points out or shows a limit or end : dividing line
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