2
endure(verb, advance, maintain, continue, extend)
2
enlargement
2
escalate(verb, set, cover, advance, increase)
2
exaggerate(verb, advance, increase, develop, raise)
2
fill out(verb, expression, increase, open, develop)
2
forge ahead(expression, advance, maintain, continue, stay)
2
get on with it(expression, idiom, advance, maintain, continue)
2
go on(verb, expression, take, cover, advance)
2
hang in(expression, advance, maintain, continue, stay)
2
hike(verb, increase, open, develop, extend)
2
hold(delay, extend)
2
increment(verb, increase, expand)
2
jack up(verb, expression, increase, develop, extend)
2
keep(verb, sustain, last, persist, survive)
2
keep at(expression, advance, maintain, continue, stay)
2
keep going(verb, expression, take, advance, open)
2
keep on(expression, advance, maintain, continue, stay)
2
keep the ball rolling(expression, idiom, advance, maintain, continue)
2
last(verb, take, cover, advance, increase)
2
linger(verb, advance, maintain, continue, stay)
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APASmart Define. (2016). lengthen thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/lengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "lengthen thesaurus" https://smartdefine.org/lengthen/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, lengthen thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/lengthen/thesaurus/synonyms>.
MLASmart Define. "lengthen thesaurus" 9 March 2016. Web. 26 September 2026. <https://smartdefine.org/lengthen/thesaurus/synonyms>