41 entries under frontier topic. ×

37
border(noun, part, top, outline, edge)
22
periphery(noun, area, part, turn, top)
21
boundary(noun, area, part, end, top)
16
circumference(noun, area, turn, limit, scope)
13
limit(noun, area, part, top, scope)
12
ambit(noun, area, line, limit, scope)
12
compass(noun, area, turn, limit, scope)
9
limits(noun, border, borderline, boundaries)
7
borderline(noun, edge, border, trimming)
7
confines(noun, area, line, limit, scope)
3
extremity(noun, edge, border, borderline)
3
pale(noun, border, borderline)
2
borderland(border, borderline)
2
circumscription(noun, area, line, limit, scope)
2
environs(noun, area, line, limit, scope)
2
outpost(border, borderline)
2
purlieus(noun, area, line, limit, scope)
1
end(edge, border, borderline, lip)
1
extent(noun, area, line, limit, scope)
1
horizon(ring, border, loop, borderline)
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APASmart Define. (2015). perimeter thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/perimeter/thesaurus/synonyms
ChicagoSmart Define. 2015. "perimeter thesaurus" https://smartdefine.org/perimeter/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, perimeter thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/perimeter/thesaurus/synonyms>.
MLASmart Define. "perimeter thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/perimeter/thesaurus/synonyms>