50 entries under borderline topic. ×
| circumscription(noun, area, line, limit, scope) | |
| environs(noun, area, line, limit, scope) | |
| frontier(noun, border, verge, threshold) | |
| outpost(border, frontier) | |
| purlieus(noun, area, line, limit, scope) | |
| end(edge, border, frontier, lip) | |
| extent(noun, area, line, limit, scope) | |
| horizon(ring, border, loop, frontier) | |
| line(noun, track, edge, trail, border) | |
| march(edge, border, frontier, trimming) | |
| precinct(noun, area, line, limit, scope) | |
| radius(noun, area, line, limit, scope) | |
| abuttals(border, frontier) | |
| barrier(border, frontier) | |
| beginning(border, frontier) | |
| boundary frontier(expression, frontier) | |
| door | |
| entrance | |
| line of demarcation(expression, idiom, border, frontier) | |
| marchland |
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| APA | Smart Define. (2015). perimeter thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/perimeter/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "perimeter thesaurus" https://smartdefine.org/perimeter/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, perimeter thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/perimeter/thesaurus/synonyms>. |
| MLA | Smart Define. "perimeter thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/perimeter/thesaurus/synonyms> |