Boundary
Boundary noun - A real or imaginary point beyond which a person or thing cannot go.
Usage example: parents have to set boundaries for their children, and the children want them to
Edge is a synonym for boundary in position topic. In some cases you can use "Edge" instead a noun "Boundary", when it comes to topics like border, end, frontier, contour. popular alternative
Nearby Word: bound
Edge
Edge noun - The line or relatively narrow space that marks the outer limit of something.
Usage example: the design along the edge of the plate is badly worn
Boundary is a synonym for edge in border topic. You can use "Boundary" instead a noun "Edge", if it concerns topics such as position, end, contour. popular alternative
Mutual synonyms
How words are described
Both words in one sentence
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Players are kept inside the boundaries by wind picking up the closer to the edge they get, first slowing them down, then blowing them back across the invisible boundary.
Source: Video Game / Journey - Dead willing and able to resist the river can walk along the edge of the boundary to change where in Life they will emerge, sometimes voluntarily re-entering Death for this purpose.
Source: Extra Dimensional Shortcut -
The anime of Beyond the Boundary even starts with the word "suicide" and begins with Mirai standing at the edge of the school roof and Akihito trying to talk her out of suicide.
Source: Starts with a Suicide
Cite this Source
Edge and Boundary. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/boundary/edge
Boundary & Edge. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/boundary/edge>.
Edge or Boundary. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/boundary/edge.
Google Ngram Viewer shows how "boundary" and "edge" have occurred on timeline