2
live on(expression, advance, maintain, continue, stay)
2
loiter(verb, advance, maintain, continue, stay)
2
make headway(expression, advance, maintain, continue, stay)
2
mount(verb, advance, increase, open, develop)
2
move ahead(expression, advance, maintain, continue, stay)
2
mushroom(verb, set, cover, increase, open)
2
never cease(expression, advance, maintain, continue, stay)
2
open(verb, take, go, set, cover)
2
outlast(verb, advance, maintain, continue, stay)
2
outlive(verb, advance, maintain, continue, stay)
2
outstretch(verb, set, cover, extend, spread)
2
perdure(verb, advance, maintain, continue, stay)
2
perpetuate(delay, extend, sustain, persist, persevere)
2
persevere(verb, advance, maintain, continue, extend)
2
persist(verb, advance, maintain, delay, continue)
2
persist in(expression, advance, maintain, continue, stay)
2
press on(expression, advance, maintain, continue, stay)
2
proceed(verb, advance, increase, draw, progress)
2
progress(verb, advance, increase, maintain, raise)
2
proliferate(verb, set, cover, advance, increase)
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APASmart Define. (2016). lengthen thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/lengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "lengthen thesaurus" https://smartdefine.org/lengthen/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, lengthen thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/lengthen/thesaurus/synonyms>.
MLASmart Define. "lengthen thesaurus" 9 March 2016. Web. 25 September 2026. <https://smartdefine.org/lengthen/thesaurus/synonyms>