42 entries under boundary topic. ×
| border(noun, territory, limit, edge, borderline) | |
| limit(noun, mark, limit, edge, border) | |
| bound(noun, limit, edge) | |
| extremity(noun, limit, edge, border, borderline) | |
| remote(adjective, limit, edge, distance) | |
| terminus(noun, limit, edge, border, borderline) | |
| verge(noun, limit, edge, border, borderline) | |
| brink(noun, area, limit, edge, border) | |
| extreme(noun, limit, edge) | |
| extremes(limit, edge) | |
| termination(noun, limit, edge, border, borderline) | |
| pole(limit, edge) | |
| fringe(limit, edge, border, borderline) | |
| rim(limit, edge, border, borderline) | |
| acme(limit, edge) | |
| acuteness(limit, edge) | |
| adversity(limit, edge) | |
| apex(limit, edge) | |
| apogee(limit, edge) | |
| brim(limit, edge, verge, threshold) |
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| APA | Smart Define. (2015). frontier thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/frontier/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "frontier thesaurus" https://smartdefine.org/frontier/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, frontier thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/frontier/thesaurus/synonyms>. |
| MLA | Smart Define. "frontier thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/frontier/thesaurus/synonyms> |