| dealer(noun, controller, mediator, merchant, vendor) |
| director(noun, control, manage, boss, leader) |
| executor(noun, person, substitute, representative, manager) |
| functionary(noun, person, director, representative, assistant) |
| messenger(noun, person, mark, contact, representative) |
| negotiator(noun, person, substitute, representative, manager) |
| operator(noun, person, representative, assistant, attendant) |
| worker(noun, person, representative, assistant, attendant) |
| advocate(noun, person, radical, representative, partisan) |
| auxiliary(noun, supply, replacement, alternative, assistant) |
| aide(noun, representative, assistant, servant, deputy) |
| alternate(noun, reserve, replacement, deputy, backup) |
| assignee(noun, person, substitute, representative, manager) |
| catalyst(noun, causes) |
| channel(noun, power, cause, structure, means) |
| clerk(noun, assistant, attendant, operative, servant) |
| device(noun, structure, means, instrument, tissue) |
| doer(noun, person, reason, element, matter) |
| driving force(noun, expression, cause, means, powerhouse) |
| instrumentality(noun, feature, influence, issue, means) |