diplomat (n.)

• adept
• ambassador
• ambassadress
• artisan
• artist
• attache
• authority
• chancellor
• charge
• connoisseur
• consul
• consultant
• craftsman
• diplomatist
• emissary
• envoy
• expert
• graduate
• internuncio
• journeyman
• legate
• marksman
• minister
• nuncio
• plenipotentiary
• politician
• pro
• professional
• professor
• resident
• savant
• shark
• sharp
• statesman
• technician