63 entries under calm topic. ×

34
level(noun, verb, adjective, activity, feature)
27
smooth(verb, adjective, activity, press)
26
even(verb, adjective, adverb, activity)
26
flat(noun, verb, adjective, quiet)
17
flush(noun, verb, adjective, quiet)
13
horizontal(noun, adjective, quiet, direct)
13
regular(adjective, quiet, smooth, right)
12
uniform(verb, adjective, quiet, smooth)
11
flatten(verb, activity, quiet, clear)
9
plain(noun, adjective, quiet, smooth)
7
unbroken(adjective, quiet, direct, smooth)
6
uninterrupted(adjective, quiet, direct, smooth)
6
straight(adjective, direct, smooth, right)
4
continuous(adjective, quiet, direct, smooth)
4
iron(verb, quiet, clear, press)
4
lay(verb, quiet, clear, press)
3
planate(adjective, quiet, direct, smooth)
3
steady(verb, adjective, quiet, smooth)
3
trim(verb, adjective, cut, smooth)
2
alike(adjective, direct, smooth, right)
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APASmart Define. (2015). plane thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/plane/thesaurus/synonyms
ChicagoSmart Define. 2015. "plane thesaurus" https://smartdefine.org/plane/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, plane thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/plane/thesaurus/synonyms>.
MLASmart Define. "plane thesaurus" 24 October 2015. Web. 23 September 2026. <https://smartdefine.org/plane/thesaurus/synonyms>