| assignee(noun, substitute, operative, manager, alternate) |
| auxiliary(noun, adjective, associate, reserve, extra) |
| backup(noun, help, associate, agent, replacement) |
| broker(noun, agent, substitute, operative, alternate) |
| counterfeit(noun, extra, substitute, auxiliary, supernumerary) |
| demonstrative(adjective, characteristic, open, energetic, passionate) |
| descriptive(adjective, expressive, fanciful, revealing, graphic) |
| diagnostic(adjective, individual, indication, specific, typical) |
| distinguishing(adjective, individual, specific, typical, distinctive) |
| fill-in(noun, substitute, replacement, alternative, alternate) |
| indicatory |
| individual(noun, adjective, piece, copy, model) |
| locum tenens(expression, idiom, supply, agent, replacement) |
| mediator(noun, agent, voice, manager, broker) |
| member(noun, person, part, associate, agent) |
| normal(adjective, characteristic, common, ordinary, natural) |
| original(noun, adjective, model, true, natural) |
| peculiar(adjective, individual, specific, typical, distinctive) |
| procurator(supply, agent, replacement, alternative, alternate) |
| sampling(noun, type, piece, copy, case) |