101 entries under advance topic. ×

2
stay(verb, maintain, delay, continue)
2
stay on(expression, maintain, continue, stay)
2
stick at(expression, maintain, continue, stay)
2
stick to(expression, maintain, continue, stay)
2
survive(verb, maintain, continue, extend)
2
tack on(verb, expression, increase, open)
2
uphold(verb, maintain, continue, stay)
1
annex(verb, increase, raise, rise)
1
deepen(verb, increase, raise, rise)
1
double(verb, increase, raise, rise)
1
further(verb, increase, raise, rise)
1
intensify(verb, increase, raise, rise)
1
mark up(verb, expression, increase, raise)
1
pullulate(verb, increase, raise, rise)
1
rise(verb, increase, develop, raise)
1
sharpen(verb, increase, raise, rise)
1
step up(verb, expression, increase, raise)
1
strengthen(verb, increase, raise, rise)
1
swarm(verb, increase, raise, rise)
1
teem(verb, increase, raise, rise)
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APASmart Define. (2016). lengthen thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/lengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "lengthen thesaurus" https://smartdefine.org/lengthen/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, lengthen thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/lengthen/thesaurus/synonyms>.
MLASmart Define. "lengthen thesaurus" 9 March 2016. Web. 30 September 2026. <https://smartdefine.org/lengthen/thesaurus/synonyms>