594 entries under verb topic. ×

10
refresh(encourage, raise, strength, stimulate)
10
spike
10
toughen(support, close, set, fix)
9
build up(expression, phrasal verb, form, support)
9
cheer(encourage, raise, stimulate, excite)
9
nerve(close, set, fix, settle)
9
protect(support, hold, charge, strong)
9
renew(support, increase, encourage, raise)
9
stiffen(support, close, set, fix)
9
sustain(support, hold, increase, develop)
8
barricade(secure, block, protect, prepare for attack)
8
beef up(expression, phrasal verb, support, increase)
8
boost(support, increase, develop, encourage)
8
empower(support, increase, establish, extend)
8
prepare(support, make, get, charge)
8
ready(support, make, place, fix)
8
shore up(expression, phrasal verb, support, strong)
8
vitalize(stimulate, excite, boost, strengthen)
7
arouse(encourage, revive, refresh, reassure)
7
bulwark(noun, support, hold, strong)
11 years ago|15k views|share |citing 
APASmart Define. (2015). fortify thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fortify/thesaurus/synonyms
ChicagoSmart Define. 2015. "fortify thesaurus" https://smartdefine.org/fortify/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, fortify thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fortify/thesaurus/synonyms>.
MLASmart Define. "fortify thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/fortify/thesaurus/synonyms>