| instrumentation(noun, means) |
| liaison(noun, official, mediator, executive, broker) |
| mechanism(noun, material, means, instrument, tool) |
| mouthpiece(noun, structure, means, representative, channel) |
| salesman(noun, merchant, seller) |
| second(noun, assistant, deputy) |
| secretary(noun, leader, director, representative, assistant) |
| tool(noun, person, material, structure, instrument) |
| administrator(noun, leader, director, representative, attendant) |
| arbitrator(noun, mediator, broker, consignee, intermediary) |
| attendant(noun, assistant, operative, factor, deputy) |
| backup(noun, substitute, replacement, representative, alternative) |
| base(noun, cause, source, derivation, causes) |
| distributor(noun, merchant) |
| double(noun, replacement, alternative, alternate, deputy) |
| dummy(noun, supply, replacement, alternative, alternate) |
| element(noun, feature, cause, influence, reason) |
| factotum(noun, person, director, representative, manager) |
| federal agent(noun, expression, idiom) |
| force(noun, power, cause, means, instrument) |