430 entries under noun topic. ×

3
line
3
logarithm(number, mathematics)
3
mainspring(cause, reason, idea, object)
3
mainstream(center, middle, target)
3
middle of the road(center, middle, target)
3
midpoint(center, middle, target)
3
midst(center, middle, target)
3
modulus(number, mathematics)
3
nave(center, middle, target)
3
navel(center, middle, target)
3
omphalos(center, middle, target)
3
outset(cause, start, top, beginning)
3
pivot(center, middle, target)
3
polestar(place, emotion, quick, heart)
3
radial point(center, middle, target)
3
resolution(answer, emotion, means, mood)
3
rivet(verb, form, place, set)
3
rock bottom(expression, cause, base, core)
3
stimulus(cause, reason, object, source)
3
stub(end, point, stump, remains)
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APASmart Define. (2016). root thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/root/thesaurus/synonyms
ChicagoSmart Define. 2016. "root thesaurus" https://smartdefine.org/root/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, root thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/root/thesaurus/synonyms>.
MLASmart Define. "root thesaurus" 2 March 2016. Web. 24 September 2026. <https://smartdefine.org/root/thesaurus/synonyms>