190 entries under increase topic. ×

5
raise(verb, get, fix, advance)
5
rise(verb, advance, develop, raise)
5
rouse(verb, develop, promote, encourage)
5
sharpen(verb, advance, raise, rise)
5
supplement(verb, support, help, advance)
4
add(verb, improve, boost, swell)
4
exacerbate(verb, raise, severe, boost)
4
exalt(verb, get, fix, develop)
4
grow(verb, charge, develop, promote)
4
mass(verb, get, charge, develop)
4
multiply(verb, support, advance, develop)
4
muster(verb, get, reduce, promote)
4
quicken(verb, promote, encourage, raise)
4
snowball(verb, get, advance, promote)
4
spread(verb, advance, raise, rise)
4
swell(verb, charge, advance, develop)
4
wax(verb, advance, develop, raise)
4
whet(verb, raise, severe, boost)
3
aggrandize(verb, advance, develop, raise)
3
boom(verb, develop, improve, grow)
10 years ago|19k views|share |citing 
APASmart Define. (2016). strengthen thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/strengthen/thesaurus/synonyms
ChicagoSmart Define. 2016. "strengthen thesaurus" https://smartdefine.org/strengthen/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, strengthen thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/strengthen/thesaurus/synonyms>.
MLASmart Define. "strengthen thesaurus" 3 March 2016. Web. 27 September 2026. <https://smartdefine.org/strengthen/thesaurus/synonyms>