| guarantee(noun, verb, agreement, approve, assume) |
| pledge(noun, verb, support, maintain, secure) |
| warranty(noun, verb, agreement, contract, assurance) |
| promise(noun, verb, support, maintain, secure) |
| warrant(noun, verb, support, maintain, secure) |
| assurance(noun, agreement, contract, confidence, compact) |
| bond(noun, agreement, contract, assurance, promise) |
| security(noun, agreement, contract, assurance, compact) |
| ensure(verb, support, maintain, secure, approve) |
| assure(verb, support, maintain, secure, approve) |
| surety(noun, law, support, person, agreement) |
| contract(noun, agreement, assurance, compact, promise) |
| pawn(noun, agreement, contract, assurance, compact) |
| bail(noun, agreement, contract, confidence, assurance) |
| oath(noun, agreement, contract, assurance, compact) |
| vow(noun, verb, agreement, approve, uphold) |
| certify(verb, support, maintain, secure, approve) |
| undertaking(noun, agreement, contract, assurance, compact) |
| word(noun, agreement, contract, assurance, compact) |
| certificate(noun, agreement, contract, assurance, promise) |