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
Synonyms
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
At no point is there a sharp boundary, solid material, or surface.
—
Benjamin Roulston, Discover Magazine, 7 Nov. 2024
It is defined by his combative personality, his lack of inhibitions, his willingness to ignore democratic norms to go places others won’t and blow past previous political boundaries in ways many find alarming − such as threatening to use the military against Americans who oppose him.
—David Jackson, USA TODAY, 5 Nov. 2024
The key to unlocking quantum's potential lies in collaboration across the ecosystem—bringing together experts from different domains to push the boundaries of what's possible.
—Yuval Boger, Forbes, 5 Nov. 2024
Experienced candidates faceoff in Phoenix Brophy McGee and Valenzuela are vying to represent bright-purple District 3, which sprawls from central Phoenix to the county's northern boundary.
—Sasha Hupka, The Arizona Republic, 5 Nov. 2024
See all Example Sentences for boundary 
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Benjamin Roulston, Discover Magazine, 7 Nov. 2024
It is defined by his combative personality, his lack of inhibitions, his willingness to ignore democratic norms to go places others won’t and blow past previous political boundaries in ways many find alarming − such as threatening to use the military against Americans who oppose him.
—David Jackson, USA TODAY, 5 Nov. 2024
The key to unlocking quantum's potential lies in collaboration across the ecosystem—bringing together experts from different domains to push the boundaries of what's possible.
—Yuval Boger, Forbes, 5 Nov. 2024
Experienced candidates faceoff in Phoenix Brophy McGee and Valenzuela are vying to represent bright-purple District 3, which sprawls from central Phoenix to the county's northern boundary.
—Sasha Hupka, The Arizona Republic, 5 Nov. 2024
See all Example Sentences for boundary
Dictionary Entries Near boundary
Cite this Entry
“Boundary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/boundary. Accessed 21 Nov. 2024.
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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