47 entries under frontier topic. ×
| boundary(noun, limit, edge, border, obstacle) | |
| limit(noun, control, check, curb, restraint) | |
| pale(noun, difficulty, line, limit, edge) | |
| confines(noun, line, limit, edge, border) | |
| border(noun, control, line, limit, edge) | |
| line(border, borderline) | |
| outer limit(noun, expression, border, borderline) | |
| termination(border, borderline) | |
| verge(noun, line, limit, edge, border) | |
| abuttals(border, borderline) | |
| ambit(border, borderline) | |
| beginning(border, borderline) | |
| borderland(border, borderline) | |
| borderline | |
| bounds(border, borderline) | |
| brink(border, borderline) | |
| circumference(border, borderline) | |
| circumscription(border, borderline) | |
| compass(noun, line, limit, edge, border) | |
| edge(control, limit, border, borderline) |
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| APA | Smart Define. (2015). barrier thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/barrier/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "barrier thesaurus" https://smartdefine.org/barrier/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, barrier thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/barrier/thesaurus/synonyms>. |
| MLA | Smart Define. "barrier thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/barrier/thesaurus/synonyms> |