| countersign |
| signature(noun, support, authorization, commendation, confirmation) |
| affirmation(guarantee, authorization, commendation, confirmation, backing) |
| certification(guarantee, authorization, commendation, confirmation) |
| endorsement(noun, authorization, commendation, confirmation) |
| approbation(authorization, commendation, confirmation, backing, commercial) |
| approval(authorization, commendation, confirmation) |
| authorization(support, commendation, confirmation, commercial) |
| confirmation(support, authorization, commendation, commercial) |
| green light(expression, support, authorization, commendation, confirmation) |
| hand |
| nod(support, authorization, commendation, confirmation, backing) |
| permission(support, authorization, commendation, confirmation, commercial) |
| ratification(support, authorization, commendation, confirmation, commercial) |
| sanction(support, authorization, commendation, confirmation, commercial) |
| warrant(support, authorization, commendation, confirmation, backing) |
| acceptance |
| advocacy(support, authorization, commendation, confirmation, backing) |
| assurance(noun, guarantee) |
| authorisation |