94 entries under borderline topic. ×

1
split(noun, break, end, point, line)
1
state line(noun, expression, idiom, frontier)
1
terminal(noun, top, line, limit, extreme)
1
wedge(noun, break, split, disagreement, class)
0
abuttals
0
boundary frontier(noun, expression, frontier)
0
distinction
0
line of demarcation(expression, idiom, frontier)
0
mere
0
outer limit(expression, frontier)
0
partition(split, class, distinction, section)
0
radius
0
subdivision(split, class, distinction, section)
0
watershed(distinction, margin)
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APASmart Define. (2016). border thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/border/thesaurus/synonyms
ChicagoSmart Define. 2016. "border thesaurus" https://smartdefine.org/border/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, border thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/border/thesaurus/synonyms>.
MLASmart Define. "border thesaurus" 30 March 2016. Web. 21 September 2026. <https://smartdefine.org/border/thesaurus/synonyms>