Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

agent, delegate; commissary, commissioner; emissary, envoy, commissionaire [Fr.]; messenger &c 534. diplomatist, diplomat, diplomate, corps diplomatique [Fr.], embassy; ambassador, embassador†; representative, resident, consul, legate, nuncio, internuncio†, charge d'affaires [Fr.], attache. vicegerent &c (deputy) 759; plenipotentiary. functionary, placeman†, curator; treasurer &c 801; factor, bailiff, clerk, secretary, attorney, advocate, solicitor, proctor, broker, underwriter, commission agent, auctioneer, one's man of business; factotum &c (director) 694; caretaker; dalal†, dubash†, garnishee, gomashta†. negotiator, go-between; middleman; under agent, employe; servant &c 746; referee, arbitrator &c (judge) 967. traveler, bagman, commis-voyageur [Fr.], touter†, commercial traveler, drummer [U.S.], traveling man. newspaper correspondent, own correspondent, special correspondent.