111 entries under reinforce topic. ×

1
ready(verb, support, encourage, restore, uphold)
1
regenerate(verb, support, increase, establish, extend)
1
rejuvenate(verb, support, increase, raise, establish)
1
renew(verb, support, increase, raise, establish)
1
rise(verb, form, support, set, increase)
1
secure(verb, support, set, develop, settle)
1
set up(verb, expression, phrasal verb, support, increase)
1
sinew(verb, support, increase, establish, extend)
1
soup up(verb, expression, support, increase, sustain)
1
stand up for(verb, expression, idiom, support, increase)
1
starch(verb, close, set, settle, firm)
1
steady(verb, adjective, place, set, secure)
1
step up(verb, expression, support, increase, establish)
1
stroke(verb, support, increase, boost, sustain)
1
substantiate(verb, support, increase, establish, extend)
1
supplement(verb, support, increase, boost, sustain)
1
tone up(verb, expression, support, increase, establish)
1
underline(verb, support, increase, boost, sustain)
1
wax(verb, support, increase, establish, extend)
0
bulwark(verb, support, strengthen)
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APASmart Define. (2016). harden thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/harden/thesaurus/synonyms
ChicagoSmart Define. 2016. "harden thesaurus" https://smartdefine.org/harden/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, harden thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/harden/thesaurus/synonyms>.
MLASmart Define. "harden thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/harden/thesaurus/synonyms>