There are many synonyms for the phrase "person at the wheel." Some common ones include driver, chauffeur, pilot, operator, and navigator. Each of these words describes someone who is responsible for controlling a vehicle or machine, whether it be a car, an airplane, or a ship. A driver is someone who drives a motor vehicle, while a chauffeur is a professional driver who typically operates a luxury vehicle. A pilot is someone who operates an aircraft, and an operator is someone who controls a machine or piece of equipment. A navigator is someone who helps guide a vehicle or vessel along a particular course or route. No matter what word you use, the person at the wheel is always the one in charge of getting you where you need to go.