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
Adjust one workflow, boundary, or wellness choice that keeps draining energy.
—
Tarot.com, Baltimore Sun, 23 May 2026
Most of the northern boundary is Sample Road and much of the western boundary is the Sawgrass Expressway.
—Anthony Man, Sun Sentinel, 22 May 2026
Central Florida officials are still pushing back against the state’s pro-profiteering dictates, and defending local initiatives like urban growth boundaries.
—Orlando Sentinel Editorial Board, The Orlando Sentinel, 22 May 2026
That boundary has a sharp edge.
—Maureen Kerr, Forbes.com, 22 May 2026
See All Example Sentences for boundary
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Tarot.com, Baltimore Sun, 23 May 2026
Most of the northern boundary is Sample Road and much of the western boundary is the Sawgrass Expressway.
—Anthony Man, Sun Sentinel, 22 May 2026
Central Florida officials are still pushing back against the state’s pro-profiteering dictates, and defending local initiatives like urban growth boundaries.
—Orlando Sentinel Editorial Board, The Orlando Sentinel, 22 May 2026
That boundary has a sharp edge.
—Maureen Kerr, Forbes.com, 22 May 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 23 May. 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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