68 entries under boost topic. ×

1
stir(verb, encourage, excite, prepare)
1
stroke(verb, support, increase, sustain)
1
supplement(verb, support, increase, sustain)
1
sway(verb, encourage, excite, prepare)
1
toughen(verb, support, increase, sustain)
1
underline(verb, support, increase, sustain)
0
buoy up(verb, expression, cheer, sustain)
0
raise your spirits(verb, expression, idiom, cheer)
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APASmart Define. (2015). prop up thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/prop_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "prop up thesaurus" https://smartdefine.org/prop_up/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, prop up thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/prop_up/thesaurus/synonyms>.
MLASmart Define. "prop up thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/prop_up/thesaurus/synonyms>