manager (n.)

• administrator
• agent
• banker
• baron
• boss
• businessman
• captain
• chatelaine
• chief
• commandant
• commander
• conductor
• deputy
• director
• enterpriser
• entrepreneur
• exec
• executive
• financier
• foreman
• governor
• handler
• head
• impresario
• industrialist
• king
• magnate
• master
• officer
• official
• overseer
• producer
• proprietor
• rector
• ruler
• supercargo
• superintendent
• supervisor
• tycoon