231 entries under noun topic. ×

1
portion(break, top, split, disagreement)
1
prong(top, point, limit, extreme)
1
rake-off(break, split, disagreement, class)
1
ramification(break, split, disagreement, class)
1
range(area, scope, course, track)
1
reach(area, influence, scope, range)
1
region(track, trail, route)
1
saltation
1
section(state, break, split, disagreement)
1
sector(state, break, part, top)
1
segment(break, split, disagreement, class)
1
share(break, top, split, disagreement)
1
slice(break, split, disagreement, class)
1
sort(break, split, disagreement, class)
1
sphere(state, area, influence, scope)
1
spire(top, point, limit, extreme)
1
split(break, end, point, line)
1
spring
1
state line(expression, border, borderline, frontier)
1
stretch(area, scope, range, extent)
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APASmart Define. (2015). boundary thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/boundary/thesaurus/synonyms
ChicagoSmart Define. 2015. "boundary thesaurus" https://smartdefine.org/boundary/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, boundary thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/boundary/thesaurus/synonyms>.
MLASmart Define. "boundary thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/boundary/thesaurus/synonyms>