254 entries under boost topic. ×

4
assist(verb, support, help, advance, develop)
4
brace up(verb, expression, phrasal verb, encourage)
4
embolden(verb, encourage, excite, prepare)
4
enable(verb, fix, power, stimulate, excite)
4
exacerbate(verb, increase, raise, severe)
4
exalt(verb, get, fix, increase, develop)
4
grow(verb, charge, increase, develop, promote)
4
mass(verb, get, charge, increase, develop)
4
multiply(verb, support, advance, increase, develop)
4
muster(verb, get, increase, reduce, promote)
4
quicken(verb, increase, promote, encourage, raise)
4
revitalize(verb, fix, promote, encourage, raise)
4
snowball(verb, get, advance, increase, promote)
4
spread(verb, advance, increase, raise, rise)
4
stay(verb, support, help, set)
4
swell(verb, charge, advance, increase, develop)
4
wax(verb, advance, increase, develop, raise)
4
whet(verb, increase, raise, severe)
3
aggrandize(verb, advance, increase, develop, raise)
3
arm(verb, fix, power, stimulate, excite)
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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>