2
boost(verb, support, accept, pass, favor)
2
buy(verb, support, accept, pass, favor)
2
certify(support, accept, favor, agree, establish)
2
charter(verb, support, accept, pass, favor)
2
check out(verb, expression, support, agree, back)
2
concur(verb, support, accept, pass, favor)
2
consent(noun, verb, support, accept, pass)
2
empower(verb, support, accept, pass, favor)
2
encourage(verb, support, help, accept, favor)
2
endorse(verb, support, accept, pass, favor)
2
get behind(verb, expression, phrasal verb, support, help)
2
give green light(verb, expression, idiom, support, help)
2
give stamp of approval(verb, expression, idiom, support, help)
2
give the go-ahead(verb, expression, idiom, support, agree)
2
give the nod(verb, expression, idiom, support, help)
2
go for(verb, expression, support, help, accept)
2
green light(noun, expression, approval, stamp, ok)
2
lap up(verb, expression, phrasal verb, support, accept)
2
license(noun, verb, support, accept, pass)
2
permission(noun, signal, authorization, blessing, ok)
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APASmart Define. (2015). thumbs up thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/thumbs_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "thumbs up thesaurus" https://smartdefine.org/thumbs_up/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, thumbs up thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/thumbs_up/thesaurus/synonyms>.
MLASmart Define. "thumbs up thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/thumbs_up/thesaurus/synonyms>