215 entries under strengthen topic. ×

3
thicken(verb, advance, increase, develop, secure)
3
work up(verb, expression, increase, develop, extend)
2
bolster(verb, support, take, help, advance)
2
charge up(verb, expression, support, secure, continue)
2
deepen(verb, advance, increase, raise, rise)
2
electrify(verb, cause, start, stimulate, excite)
2
emphasize(verb, support, increase, raise, severe)
2
empower(verb, support, increase, establish, extend)
2
excite(verb, open, start, raise, establish)
2
fix(verb, form, make, place, develop)
2
flesh out(verb, expression, increase, develop, continue)
2
goose(verb, get, increase, promote, raise)
2
harden(verb, support, increase, develop, secure)
2
incorporate(develop, secure, join, unite, combine)
2
innervate(verb, make, cause, start, stimulate)
2
jazz up(verb, expression, support, develop, continue)
2
join(verb, develop, secure, restore, unite)
2
lengthen(verb, advance, increase, raise, rise)
2
mass(noun, verb, get, increase, develop)
2
mix(develop, secure, join, unite, combine)
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APASmart Define. (2016). build up thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/build_up/thesaurus/synonyms
ChicagoSmart Define. 2016. "build up thesaurus" https://smartdefine.org/build_up/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, build up thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/build_up/thesaurus/synonyms>.
MLASmart Define. "build up thesaurus" 2 February 2016. Web. 28 September 2026. <https://smartdefine.org/build_up/thesaurus/synonyms>