| pledge(noun, agreement, contract, assurance, bond) |
| security(noun, agreement, contract, assurance, bond) |
| guarantee(noun, verb, secure, back, agreement) |
| subordinate(adjective, adverb, part, lower, low) |
| accessory(adjective, help, lower, low, spare) |
| ancillary(adjective, help, low, spare, inferior) |
| parallel(adjective, like, subordinate, identical, alike) |
| indirect(adjective, inferior, minor, subordinate, secondary) |
| supportive(adjective, help, spare, secondary, subsidiary) |
| auxiliary(adjective, help, lower, low, spare) |
| bond(noun, agreement, contract, assurance, promise) |
| deposit(noun, agreement, contract, assurance, promise) |
| subsidiary(adjective, adverb, help, lower, low) |
| secondary(adjective, adverb, lower, low, spare) |
| pawn(noun, care, agreement, contract, counter) |
| subservient(adjective, adverb, part, lower, low) |
| co-morbid |
| related(adjective, like, parallel, subordinate, identical) |
| under(adjective, adverb, low, inferior, insignificant) |
| attendant(adjective, joint, subordinate, contemporary, additional) |