3
endorsement(noun, support, leave, agreement, approval)
3
imprimatur(noun, authorization, consent, go-ahead)
3
liberty(noun, pass, agreement, authority, approval)
3
pass(noun, verb, approve, permit, grant)
3
signal(noun, order, command, indication, authorization)
3
stamp of approval(noun, expression, idiom, understanding, agreement)
3
thumbs-up(noun, authorization, ok, go-ahead)
3
traffic light(noun, signal)
3
validation(noun, support, approval, sanction, evidence)
3
warrant(noun, support, order, pass, favor)
2
admission(authorization, consent, proof, verification, endorsement)
2
allowance(noun, understanding, agreement, authority, approval)
2
assent(noun, support, understanding, agreement, authority)
2
authentication(proof, verification, endorsement, substantiation, corroboration)
2
caution light
2
certification(noun, statement, authorization, commendation, document)
2
charter(noun, pass, authority, grant, authorization)
2
countersignature(support, authorization, commendation, confirmation, commercial)
2
entitlement(noun, grant, appropriation, subsidy, subvention)
2
go ahead(expression, proof, verification, endorsement, substantiation)
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APASmart Define. (2015). green light thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/green_light/thesaurus/synonyms
ChicagoSmart Define. 2015. "green light thesaurus" https://smartdefine.org/green_light/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, green light thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/green_light/thesaurus/synonyms>.
MLASmart Define. "green light thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/green_light/thesaurus/synonyms>