7
nourish(verb, give, keep, maintain, encourage)
7
reanimate(verb, fix, encourage, raise, gain)
7
recruit(verb, get, increase, promote, strength)
7
redouble(verb, advance, increase, develop, raise)
7
revive(verb, fix, promote, encourage, raise)
7
uphold(verb, support, hold, help, fix)
6
aggravate(verb, get, advance, increase, develop)
6
prepare(verb, support, make, get, charge)
6
ready(verb, support, make, place, fix)
6
set up(verb, expression, phrasal verb, make, fix)
6
stimulate(verb, open, start, promote, encourage)
5
build(verb, advance, increase, open, develop)
5
add to(verb, expression, support, help, charge)
5
aid(verb, support, help, advance, develop)
5
anneal(verb, close, set, fix, settle)
5
exaggerate(verb, get, advance, increase, develop)
5
freshen(verb, stimulate, refresh, revitalize)
5
help(verb, support, advance, cause, encourage)
5
inspire(verb, open, start, promote, encourage)
5
mount(verb, advance, increase, develop, raise)
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APASmart Define. (2016). strengthen thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/strengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "strengthen thesaurus" https://smartdefine.org/strengthen/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, strengthen thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/strengthen/thesaurus/synonyms>.
MLASmart Define. "strengthen thesaurus" 3 March 2016. Web. 26 September 2026. <https://smartdefine.org/strengthen/thesaurus/synonyms>