38 entries under frontier topic. ×
| abuttals(border, borderline) | |
| barrier(control, limit, border, borderline) | |
| beginning(border, borderline) | |
| borderland(border, borderline) | |
| extent(border, borderline) | |
| horizon(border, borderline) | |
| limits(border, borderline) | |
| line of demarcation(expression, idiom, border, borderline) | |
| mere(border, borderline) | |
| mete(border, borderline) | |
| outer limit(expression, border, borderline) | |
| outpost(border, borderline) | |
| pale(border, borderline) | |
| precinct(border, borderline) | |
| purlieus(edge, border, borderline) | |
| radius(border, borderline) | |
| state line(expression, border, borderline) | |
| terminal(limit, edge, border, borderline, boundary) |
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| APA | Smart Define. (2015). rim thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/rim/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rim thesaurus" https://smartdefine.org/rim/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, rim thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/rim/thesaurus/synonyms>. |
| MLA | Smart Define. "rim thesaurus" 3 August 2015. Web. 26 September 2026. <https://smartdefine.org/rim/thesaurus/synonyms> |