57 entries under balloon topic. ×

1
extend(verb, support, advance, increase, raise)
1
grow(verb, move, increase, promote, stimulate)
1
inflate(verb, advance, increase, raise, rise)
1
lengthen(verb, advance, increase, raise, rise)
1
mount(verb, support, advance, increase, raise)
1
multiply(verb, support, advance, increase, raise)
1
progress(noun, verb, support, break, advance)
1
proliferate(verb, advance, increase, raise, rise)
1
prolong(verb, advance, increase, raise, rise)
1
protract(verb, advance, increase, raise, rise)
1
pullulate(verb, advance, increase, raise, rise)
1
spread(verb, advance, increase, raise, rise)
1
swarm(verb, advance, increase, raise, rise)
1
teem(verb, advance, increase, raise, rise)
1
thicken(verb, advance, increase, raise, rise)
1
wax(verb, support, advance, increase, raise)
1
widen(verb, advance, increase, raise, rise)
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APASmart Define. (2016). step up thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/step_up/thesaurus/synonyms
ChicagoSmart Define. 2016. "step up thesaurus" https://smartdefine.org/step_up/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, step up thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/step_up/thesaurus/synonyms>.
MLASmart Define. "step up thesaurus" 25 February 2016. Web. 22 September 2026. <https://smartdefine.org/step_up/thesaurus/synonyms>