41 entries under frontier topic. ×
| border(noun, part, top, outline, edge) | |
| periphery(noun, area, part, turn, top) | |
| boundary(noun, area, part, end, top) | |
| circumference(noun, area, turn, limit, scope) | |
| limit(noun, area, part, top, scope) | |
| ambit(noun, area, line, limit, scope) | |
| compass(noun, area, turn, limit, scope) | |
| limits(noun, border, borderline, boundaries) | |
| borderline(noun, edge, border, trimming) | |
| confines(noun, area, line, limit, scope) | |
| extremity(noun, edge, border, borderline) | |
| pale(noun, border, borderline) | |
| borderland(border, borderline) | |
| circumscription(noun, area, line, limit, scope) | |
| environs(noun, area, line, limit, scope) | |
| outpost(border, borderline) | |
| purlieus(noun, area, line, limit, scope) | |
| end(edge, border, borderline, lip) | |
| extent(noun, area, line, limit, scope) | |
| horizon(ring, border, loop, borderline) |
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| APA | Smart Define. (2015). perimeter thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/perimeter/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "perimeter thesaurus" https://smartdefine.org/perimeter/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, perimeter thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/perimeter/thesaurus/synonyms>. |
| MLA | Smart Define. "perimeter thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/perimeter/thesaurus/synonyms> |