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
Even in heated moments, the relationship remains unaffected at its roots because conflict stays within respectable boundaries.
—
Mark Travers, Forbes.com, 14 July 2025
The lodge, built in 1937, was the sole hotel within the North Rim's park boundaries.
—Rey Covarrubias Jr, AZCentral.com, 14 July 2025
An artist who lived beyond the boundaries of language and region.
—Naman Ramachandran, Variety, 14 July 2025
The law says that if 25% of residents living within the boundaries lodge protests, the residents and landowners must vote in a special election on the issue.
—Sacbee.com, 14 July 2025
See All Example Sentences for boundary
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Mark Travers, Forbes.com, 14 July 2025
The lodge, built in 1937, was the sole hotel within the North Rim's park boundaries.
—Rey Covarrubias Jr, AZCentral.com, 14 July 2025
An artist who lived beyond the boundaries of language and region.
—Naman Ramachandran, Variety, 14 July 2025
The law says that if 25% of residents living within the boundaries lodge protests, the residents and landowners must vote in a special election on the issue.
—Sacbee.com, 14 July 2025
See All Example Sentences for boundary
Cite this Entry
“Boundary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/boundary. Accessed 22 Jul. 2025.
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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