12
confine(noun, verb, close, top, limit)
12
side(noun, end, top, point, limit)
12
terminal(noun, end, top, limit, extreme)
11
confines(noun, close, area, limit, scope)
11
extent(noun, state, area, top, influence)
11
borderline(noun, mark, top, limit, stroke)
11
brim(noun, adjective, limit, edge, trim)
11
limitation(noun, close, area, top, point)
10
borderland(noun, territory, limit, outline, edge)
10
march(noun, territory, limit, outline, edge)
10
mark(noun, limit, outline)
9
deadline(noun, top, point, limit, range)
9
division(noun, break, part, top, split)
9
extreme(noun, adjective, end, top, point)
9
fence(noun, edge, hedge, barrier, blockade)
9
limits(noun, limit, outline, border, borderline)
9
outline(noun, mark, limit, edge, trim)
9
terminus(noun, close, top, limit, division)
8
ambit(noun, area, influence, limit, scope)
8
precinct(noun, area, influence, limit, scope)
11 years ago|13k views|share |citing 
APASmart Define. (2015). boundary thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/boundary/thesaurus/synonyms
ChicagoSmart Define. 2015. "boundary thesaurus" https://smartdefine.org/boundary/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, boundary thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/boundary/thesaurus/synonyms>.
MLASmart Define. "boundary thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/boundary/thesaurus/synonyms>