boatswain (n.)

• auditor
• boss
• captain
• chief
• commander
• comptroller
• controller
• floorwalker
• foreman
• gaffer
• ganger
• head
• headman
• inspector
• master
• mate
• monitor
• navigator
• overseer
• patron
• proctor
• quartermaster
• sirdar
• skipper
• super
• superintendent
• supervisor
• surveyor
• taskmaster
• visitor