7
elongate(verb, take, cover, increase, open)
7
fatten(verb, increase, open, develop, extend)
7
flare(verb, spread)
7
maximize(noun, verb, increase)
7
multiply(verb, take, set, cover, advance)
7
thicken(verb, advance, increase, open, develop)
6
blow up(verb, expression, phrasal verb, increase, open)
6
branch out(verb, expression, phrasal verb)
6
diversify
6
wax(verb, advance, increase, open, develop)
5
aggrandize(verb, take, cover, advance, increase)
5
boost(verb, take, cover, advance, increase)
5
escalate(verb, set, cover, advance, increase)
5
heighten(verb, take, cover, advance, increase)
5
improve(noun, verb, increase, boost, swell)
5
proliferate(verb, set, cover, advance, increase)
5
raise(verb, advance, increase, rise, extend)
5
supplement(verb, take, cover, advance, increase)
4
continue(verb, take, cover, increase, open)
4
open(verb, take, set, cover, increase)
11 years ago|9.1k views|share |citing 
APASmart Define. (2015). broaden thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/broaden/thesaurus/synonyms
ChicagoSmart Define. 2015. "broaden thesaurus" https://smartdefine.org/broaden/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, broaden thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/broaden/thesaurus/synonyms>.
MLASmart Define. "broaden thesaurus" 15 July 2015. Web. 22 September 2026. <https://smartdefine.org/broaden/thesaurus/synonyms>