| mandate(noun, support, order, command, authority) | |
| patent(noun, grant, document, license, certification) | |
| permit(noun, understanding, pass, agreement, authority) | |
| ratification(noun, support, favor, approval, sanction) | |
| red light | |
| signature(support, leave, sanction, authorization, commendation) | |
| stop light(noun, signal) | |
| traffic signal | |
| visa(noun, permit, approval, evidence, proof) | |
| word(noun, order, command, permit, approval) | |
| acquiescence(noun, support, understanding, agreement, approval) | |
| advocacy(support, authorization, commendation, confirmation, commercial) | |
| affirmance | |
| aid to navigation(expression, idiom) | |
| alarm | |
| amber light | |
| attestation(proof, confirmation, verification, endorsement, assertion) | |
| authorisation | |
| authority(noun, order, pass, leave, command) | |
| avowal(authorization, consent, proof, confirmation, verification) |
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| APA | Smart Define. (2015). green light thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/green_light/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "green light thesaurus" https://smartdefine.org/green_light/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, green light thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/green_light/thesaurus/synonyms>. |
| MLA | Smart Define. "green light thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/green_light/thesaurus/synonyms> |