143 entries under extend topic. ×

6
fill out(verb, expression, phrasal verb, advance, increase)
6
heighten(verb, advance, increase, open, develop)
6
intensify(verb, advance, increase, develop, promote)
6
proliferate(verb, set, cover, advance, increase)
5
thicken(verb, set, advance, increase, develop)
4
step up(verb, expression, advance, increase, raise)
4
strengthen(verb, charge, advance, increase, develop)
3
aggravate(verb, advance, increase, raise, rise)
3
elaborate(verb, adjective, increase, open, develop)
3
elongate(verb, go, cover, increase, open)
3
exaggerate(verb, advance, increase, develop, raise)
3
pullulate(verb, advance, increase, run, turn)
3
redouble(verb, advance, increase, raise, rise)
3
spring up(verb, expression, phrasal verb, go, cover)
3
unfold(verb, go, set, cover, increase)
2
beef up(verb, expression, phrasal verb, increase, develop)
2
branch out(verb, expression, go, cover, advance)
2
bulk(noun, verb, increase, develop)
2
burst forth(verb, expression, phrasal verb, go, cover)
2
deepen(verb, advance, increase, raise, gain)
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APASmart Define. (2016). swell thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/swell/thesaurus/synonyms
ChicagoSmart Define. 2016. "swell thesaurus" https://smartdefine.org/swell/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, swell thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/swell/thesaurus/synonyms>.
MLASmart Define. "swell thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/swell/thesaurus/synonyms>