| supplementary(adjective, support, low, inferior, subject) |
| abettor(noun, person, help, aid, associate) |
| adjuvant(adjective, support, aid, low, spare) |
| collateral(adjective, help, lower, low, spare) |
| supportive(adjective, help, spare, collateral, subsidiary) |
| attachment(noun, feature, part, increase, extra) |
| colleague(noun, person, help, aid, associate) |
| attendant(noun, adjective, present, aid, supporter) |
| collaborator(noun, help, aid, associate, supporter) |
| supplemental(adjective, useful, minor, addition, helpful) |
| appurtenant(adjective, support, spare, useful, minor) |
| conspirator(noun, person, help, associate, assistant) |
| convenience(noun, ease, useful, closeness, suitability) |
| extension(noun, part, extra, addition, ornament) |
| accompaniment(noun, part, addition, decoration, supplement) |
| accoutrement(noun, part, extra, addition, extension) |
| addendum(noun, extra, addition, attachment, supplement) |
| aide(noun, person, help, aid, associate) |
| concomitant(noun, adjective, subordinate, collateral, additional) |
| contributory(adjective, support, help, low, spare) |