42 entries under boundary topic. ×

24
border(noun, territory, limit, edge, borderline)
23
limit(noun, mark, limit, edge, border)
10
bound(noun, limit, edge)
6
extremity(noun, limit, edge, border, borderline)
4
remote(adjective, limit, edge, distance)
4
terminus(noun, limit, edge, border, borderline)
4
verge(noun, limit, edge, border, borderline)
3
brink(noun, area, limit, edge, border)
3
extreme(noun, limit, edge)
3
extremes(limit, edge)
3
termination(noun, limit, edge, border, borderline)
2
pole(limit, edge)
1
fringe(limit, edge, border, borderline)
1
rim(limit, edge, border, borderline)
0
acme(limit, edge)
0
acuteness(limit, edge)
0
adversity(limit, edge)
0
apex(limit, edge)
0
apogee(limit, edge)
0
brim(limit, edge, verge, threshold)
<123>
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APASmart Define. (2015). frontier thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/frontier/thesaurus/synonyms
ChicagoSmart Define. 2015. "frontier thesaurus" https://smartdefine.org/frontier/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, frontier thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/frontier/thesaurus/synonyms>.
MLASmart Define. "frontier thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/frontier/thesaurus/synonyms>