Synonyms|7Antonyms|0|Broader|23Narrower|24Related|130

5 entries under frontier topic. ×

4
border(noun, line, boundary)
4
borderline(noun, line, border, boundary)
4
boundary(noun, line, border)
4
edging(noun, line, border, boundary)
4
state line(expression, line, border, boundary)
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APASmart Define. (1970). border state thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/border_state/thesaurus/broader
ChicagoSmart Define. 1970. "border state thesaurus" https://smartdefine.org/border_state/thesaurus/broader (accessed September 21, 2026).
HarvardSmart Define 1970, border state thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/border_state/thesaurus/broader>.
MLASmart Define. "border state thesaurus" 1 January 1970. Web. 21 September 2026. <https://smartdefine.org/border_state/thesaurus/broader>