Synonyms|372Antonyms|27|Broader|18Narrower|8Related|123

54 entries under noun topic. ×

36
boundary(territory, limit, edge, border)
24
border(territory, limit, edge, borderline)
23
limit(mark, limit, edge, border)
16
borderland(territory, edge, border, contiguity)
16
line(mark, stroke, border)
14
margin
13
borderline
10
bound(limit, edge, boundary)
8
edge(outline, border)
7
marches
7
terminal(adjective, limit)
7
end
7
hinterland(border, backcountry)
6
backwoods(adjective, limit)
6
compass
6
confine
6
pale
6
extremity(limit, edge, border, borderline)
5
bourn
4
bounds(limit, border, borderline)
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ChicagoSmart Define. 2015. "frontier thesaurus" https://smartdefine.org/frontier/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, frontier thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/frontier/thesaurus/synonyms>.
MLASmart Define. "frontier thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/frontier/thesaurus/synonyms>