| covenant(noun, agreement, record, contract, assurance) |
| authorization(noun, permit, warrant, permission, document) |
| bail(noun, agreement, money, contract, assurance) |
| certification(noun, agreement, permit, record, contract) |
| collateral(noun, agreement, contract, assurance, bond) |
| authority(noun, dueness) |
| certificate(noun, agreement, permit, record, contract) |
| agreement(noun, record, contract, assurance, compact) |
| attestation(noun, agreement, permit, record, contract) |
| deposit(noun, agreement, money, contract, assurance) |
| indemnity(noun, cover, protection, security, surety) |
| plight(noun, promise, security) |
| tie |
| warrantee |
| word of honor(noun, expression, idiom, support, agreement) |
| acceptance |
| admission(noun, permission, affirmation) |
| charter(noun, agreement, record, contract, assurance) |
| commitment |
| corroboration(noun, affirmation, certification) |