122 entries under support topic. ×

32
reinforce(verb, hold, close, get)
31
fortify(verb, form, make, close)
28
brace(noun, verb, form, hold)
20
bolster(verb, hold, help, give)
19
harden(verb, close, set, meet)
19
buttress(noun, verb, hold, close)
17
increase(noun, verb, get, charge)
16
toughen(verb, close, set, fix)
14
steel(verb, form, make, dull)
12
energize(verb, increase, promote, encourage)
11
advance(verb, get, help, increase)
10
boost(verb, get, help, advance)
10
develop(verb, form, make, dull)
10
prop(verb, hold, help, fix)
10
shore up(verb, expression, phrasal verb, help)
9
augment(verb, get, help, advance)
9
back(verb, open, keep, develop)
9
back up(verb, expression, phrasal verb, increase)
9
beef up(verb, expression, phrasal verb, increase)
9
build up(verb, expression, phrasal verb, form)
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APASmart Define. (2016). strengthen thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/strengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "strengthen thesaurus" https://smartdefine.org/strengthen/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, strengthen thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/strengthen/thesaurus/synonyms>.
MLASmart Define. "strengthen thesaurus" 3 March 2016. Web. 25 September 2026. <https://smartdefine.org/strengthen/thesaurus/synonyms>