53 entries under expression topic. ×

1
thumbs up(support, back, sign, uphold)
0
add force to(verb, phrasal verb)
0
add fuel to fire(idiom, strengthen, buttress)
0
add to(strengthen, buttress)
0
approve of(verb, phrasal verb)
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be behind
0
beef up(strengthen, buttress)
0
bolster up(verb, phrasal verb)
0
build up(strengthen, buttress)
0
carry on(verb, continue, stay, extend)
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conduct meeting(verb, continue, stay, extend)
0
draw out(verb, continue, stay, extend)
0
fend for(verb, phrasal verb)
0
give support to(verb, idiom, phrasal verb, aid)
0
have bearing(verb, continue, stay, extend)
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heat up(strengthen, buttress)
0
hold good(verb, continue, stay, extend)
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hold true(verb, continue, stay, extend)
0
jack up(verb, phrasal verb, support, reinforce)
0
lend a hand(idiom, strengthen, buttress)
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APASmart Define. (2015). underpin thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/underpin/thesaurus/synonyms
ChicagoSmart Define. 2015. "underpin thesaurus" https://smartdefine.org/underpin/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, underpin thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/underpin/thesaurus/synonyms>.
MLASmart Define. "underpin thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/underpin/thesaurus/synonyms>