200 entries under expression topic. ×

9
build up(verb, phrasal verb, form, support)
8
beef up(verb, phrasal verb, support, increase)
8
shore up(verb, phrasal verb, support, strong)
4
back up(verb, phrasal verb, support, increase)
4
buck up(verb, phrasal verb, encourage, raise)
4
punch up(verb, phrasal verb, support, strong)
4
step up(verb, phrasal verb, support, strong)
3
add to(verb, support, help, charge)
3
case harden(idiom, strength)
3
man the garrison
3
set up(verb, phrasal verb, support, make)
2
beat off(hold, maintain, oppose, secure)
2
brace up(verb, encourage, boost, ready)
2
care for(hold, keep, maintain, encourage)
2
charge up(verb, phrasal verb, support, strong)
2
dig in(verb, root, embed, ingrain)
2
egg on(support, develop, promote, favor)
2
fend off(hold, maintain, oppose, secure)
2
fight for(hold, maintain, oppose, secure)
2
fill in(verb, form, make, place)
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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>