190 entries under increase topic. ×

2
proliferate(verb, advance, raise, rise)
2
prolong(verb, advance, raise, rise)
2
prop up(verb, expression, support, encourage)
2
put up(verb, expression, phrasal verb, get)
2
pyramid(verb, get, develop, promote)
2
refine(verb, extend, expand, enlarge)
2
rendezvous(verb, get, promote, boost)
2
run up(expression, get, promote, boost)
2
send through the roof(verb, expression, idiom, get)
2
soup up(verb, expression, support, secure)
2
stroke(verb, support, keep, maintain)
2
swarm(verb, advance, reduce, raise)
2
tack on(verb, expression, hold, advance)
2
triple(verb, advance, raise, rise)
2
up(verb, get, promote, boost)
2
widen(verb, advance, raise, rise)
1
accent(verb, raise, severe, boost)
1
accentuate(verb, raise, severe, boost)
1
add fuel(verb, expression, raise, severe)
1
add fuel to fire(verb, expression, idiom, support)
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APASmart Define. (2016). strengthen thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/strengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "strengthen thesaurus" https://smartdefine.org/strengthen/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, strengthen thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/strengthen/thesaurus/synonyms>.
MLASmart Define. "strengthen thesaurus" 3 March 2016. Web. 28 September 2026. <https://smartdefine.org/strengthen/thesaurus/synonyms>