68 entries under strengthen topic. ×

1
pillar(verb, support, increase, sustain, uphold)
1
prepare(verb, support, secure, ready, protect)
1
prop(verb, support, increase, secure, sustain)
1
prop up(verb, expression, support, increase, sustain)
1
punch up(verb, expression, support, increase, secure)
1
shore up(verb, expression, support, increase, secure)
1
stand up for(verb, expression, idiom, support, increase)
1
steel(verb, support, secure, ready, protect)
1
stiffen(verb, support, increase, sustain, uphold)
1
stretch(verb, increase, open, develop, extend)
1
stroke(verb, support, increase, sustain, uphold)
1
support(verb, increase, secure, sustain, uphold)
1
sustain(verb, support, increase, uphold)
1
swell(verb, increase, open, develop, extend)
1
toughen(verb, support, increase, sustain, uphold)
1
underline(verb, support, increase, sustain, uphold)
1
widen(verb, increase, open, develop, extend)
0
brace(verb, support, secure, protect)
0
bulwark(verb, support, secure, protect)
0
entrench(verb, support, secure, protect)
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APASmart Define. (2015). soup up thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/soup_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "soup up thesaurus" https://smartdefine.org/soup_up/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, soup up thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/soup_up/thesaurus/synonyms>.
MLASmart Define. "soup up thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/soup_up/thesaurus/synonyms>