2
fill in(verb, expression, form, make, place)
2
fit out(verb, expression, form, make, place)
2
forearm(verb, prepare, prepared)
2
fortified
2
forward(verb, support, develop, promote, favor)
2
fossilize(verb, close, set, fix, settle)
2
foster(verb, support, hold, keep, develop)
2
give a leg up(verb, expression, idiom, support, keep)
2
gladden(verb, encourage, excite, prepare, boost)
2
guard(verb, hold, charge, keep, maintain)
2
guard against(expression, hold, maintain, oppose, secure)
2
hedge(verb, hold, maintain, oppose, secure)
2
hold at bay(expression, idiom, hold, maintain, oppose)
2
incite(verb, encourage, excite, prepare, boost)
2
increase(verb, support, charge, develop, establish)
2
innervate(verb, stimulate, excite, boost, strengthen)
2
insure(verb, hold, maintain, oppose, secure)
2
intertwine
2
inure(verb, strengthen, harden)
2
keep safe(expression, hold, maintain, oppose, secure)
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APASmart Define. (2015). fortify thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fortify/thesaurus/synonyms
ChicagoSmart Define. 2015. "fortify thesaurus" https://smartdefine.org/fortify/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, fortify thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fortify/thesaurus/synonyms>.
MLASmart Define. "fortify thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/fortify/thesaurus/synonyms>