875 entries under verb topic. ×

32
reinforce(support, hold, close, get)
31
fortify(form, support, make, close)
28
brace(noun, form, support, hold)
22
support(noun, hold, help, give)
21
intensify(get, advance, increase, develop)
20
bolster(support, hold, help, give)
19
harden(support, close, set, meet)
19
buttress(noun, support, hold, close)
17
encourage(help, give, keep, maintain)
17
increase(noun, support, get, charge)
16
toughen(support, close, set, fix)
16
confirm(strong, encourage, delight, cheer)
15
invigorate(encourage, raise, strength, delight)
15
restore(fix, encourage, raise, strength)
14
steel(form, support, make, dull)
13
enhance(get, advance, increase, develop)
12
animate(promote, encourage, raise, stimulate)
12
corroborate(powerful, story, fortify, verify)
12
energize(support, increase, promote, encourage)
11
advance(support, get, help, increase)
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APASmart Define. (2016). strengthen thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/strengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "strengthen thesaurus" https://smartdefine.org/strengthen/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, strengthen thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/strengthen/thesaurus/synonyms>.
MLASmart Define. "strengthen thesaurus" 3 March 2016. Web. 28 September 2026. <https://smartdefine.org/strengthen/thesaurus/synonyms>