46 entries under frontier topic. ×

18
bounds(noun, verb, activity, territory, study)
13
confines(noun, activity, territory, study, control)
6
limit(noun, control, check, curb, condition)
4
perimeter(border, borderline, boundaries)
3
border
3
circumference(noun, edge, border, borderline)
3
compass(noun, activity, study, control, order)
3
fringe(border, borderline)
3
margin(noun, activity, study, area, work)
3
periphery(border, borderline, limitations, boundaries)
2
circumscription(noun, control, check, curb, line)
2
environs(border, borderline, neighborhood, vicinity)
2
extremity(border, borderline)
2
horizon(border, borderline)
2
outline(border, borderline)
2
pale(border, borderline)
2
precinct(noun, activity, study, area, work)
2
side(border, borderline)
2
skirt(border, borderline)
2
verge(border, borderline)
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APASmart Define. (2015). limits thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/limits/thesaurus/synonyms
ChicagoSmart Define. 2015. "limits thesaurus" https://smartdefine.org/limits/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, limits thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/limits/thesaurus/synonyms>.
MLASmart Define. "limits thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/limits/thesaurus/synonyms>