68 entries under improve topic. ×

18
set(verb, form, support, close, develop)
13
inure(verb, study, develop, prepare)
12
season(noun, verb, study, close, set)
9
accustom(verb, study, develop, prepare)
6
habituate(verb, study, develop, prepare)
5
crystallize(verb, form, close, set, develop)
4
discipline(verb, study, develop, prepare)
3
develop(verb, form, study, secure, join)
3
settle(verb, close, set, develop, secure)
2
break in(verb, expression, study, develop)
2
condense(verb, form, set, develop, secure)
2
tame(verb, study, develop, prepare)
2
teach(verb, study, develop, prepare)
1
accumulate(verb, form, set, develop, progress)
1
acquire(verb, form, set, develop, progress)
1
appear(verb, form, set, develop, progress)
1
become a reality(verb, expression, idiom, set, develop)
1
become visible(verb, expression, form, set, develop)
1
brainwash(verb, study, develop, prepare)
1
care for(verb, expression, study, develop)
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APASmart Define. (2016). harden thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/harden/thesaurus/synonyms
ChicagoSmart Define. 2016. "harden thesaurus" https://smartdefine.org/harden/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, harden thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/harden/thesaurus/synonyms>.
MLASmart Define. "harden thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/harden/thesaurus/synonyms>