264 entries under strengthen topic. ×

5
aid(verb, support, help, advance, develop)
5
assist(verb, support, help, advance, develop)
5
prop up(verb, expression, phrasal verb, support, maintain)
5
redouble(verb, advance, increase, develop, raise)
5
refresh(verb, fix, encourage, raise, strength)
5
temper(verb, close, set, fix, settle)
4
back up(verb, expression, phrasal verb, support, develop)
4
concentrate(verb, increase, develop, secure, raise)
4
emphasize(verb, support, increase, raise, severe)
4
empower(verb, support, increase, establish, extend)
4
goose(verb, get, beat, increase, promote)
4
heat up(verb, expression, phrasal verb, support, increase)
4
improve(verb, support, fix, increase, develop)
4
inflate(verb, get, advance, increase, develop)
4
pillar(verb, support, augment, bolster)
4
stay(verb, support, hold, help, maintain)
3
add(verb, support, increase, establish, extend)
3
aggravate(verb, get, advance, increase, develop)
3
buoy(verb, support, help, maintain, boost)
3
enliven(verb, encourage, raise, stimulate, excite)
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APASmart Define. (2015). reinforce thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/reinforce/thesaurus/synonyms
ChicagoSmart Define. 2015. "reinforce thesaurus" https://smartdefine.org/reinforce/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, reinforce thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/reinforce/thesaurus/synonyms>.
MLASmart Define. "reinforce thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/reinforce/thesaurus/synonyms>