96 entries under strengthen topic. ×

10
accelerate(verb, advance, increase, promote, timing)
10
escalate(verb, advance, increase, raise, rise)
10
increase(verb, support, promote, establish, severe)
10
quicken(verb, advance, increase, promote, timing)
9
boost(noun, verb, support, break, advance)
9
intensify(verb, support, advance, increase, raise)
8
enhance(verb, support, advance, increase, develop)
7
reinforce(verb, support, advance, increase, secure)
7
speed(verb, move, increase, fast)
6
augment(verb, advance, increase, develop, raise)
5
magnify(verb, advance, increase, raise, rise)
5
raise(noun, verb, support, break, advance)
4
concentrate(verb, increase, raise, severe, boost)
4
deepen(verb, advance, increase, raise, rise)
4
fortify(verb, support, strong, increase, secure)
4
heat up(verb, expression, increase, raise, severe)
4
heighten(verb, support, advance, increase, raise)
4
redouble(verb, advance, increase, raise, rise)
4
sharpen(verb, advance, increase, raise, rise)
4
whet(verb, increase, raise, severe, boost)
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APASmart Define. (2016). step up thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/step_up/thesaurus/synonyms
ChicagoSmart Define. 2016. "step up thesaurus" https://smartdefine.org/step_up/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, step up thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/step_up/thesaurus/synonyms>.
MLASmart Define. "step up thesaurus" 25 February 2016. Web. 24 September 2026. <https://smartdefine.org/step_up/thesaurus/synonyms>