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
The Convergence: Blurring Lines And Blended Skills Simultaneously, the traditional boundaries between investment stages began to blur.
—
Mitt Mehta, Forbes.com, 29 May 2025
Teams always push the regulated boundaries to improve the performance of their cars.
—Luke Smith, New York Times, 29 May 2025
In 1957, Kim Novak (Sweeney), one of the biggest box office stars of her time and the luminous face of Vertigo, falls for Sammy Davis Jr. (Jonsson), the multi-talented Rat Pack sensation who defied boundaries of race and fame.
—Zac Ntim, Deadline, 29 May 2025
While the federal government has continued to test its limits and impose itself on the states, the Constitution makes clear where boundaries exist.
—Zoltan Istvan, MSNBC Newsweek, 28 May 2025
See All Example Sentences for boundary
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Mitt Mehta, Forbes.com, 29 May 2025
Teams always push the regulated boundaries to improve the performance of their cars.
—Luke Smith, New York Times, 29 May 2025
In 1957, Kim Novak (Sweeney), one of the biggest box office stars of her time and the luminous face of Vertigo, falls for Sammy Davis Jr. (Jonsson), the multi-talented Rat Pack sensation who defied boundaries of race and fame.
—Zac Ntim, Deadline, 29 May 2025
While the federal government has continued to test its limits and impose itself on the states, the Constitution makes clear where boundaries exist.
—Zoltan Istvan, MSNBC Newsweek, 28 May 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 2 Jun. 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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