| A | B |
| accelerate | to increase the speed of |
| aviator | a pilot |
| chassis | rame that holds the body and motor of an automotive vehicle |
| chauffeur | a person who serves as a driver for another |
| cockpit | the space in an aircraft for the pilot and crew |
| commute | to travel regularly from one place to another |
| convertible | an automobile having a top that can be folded back or removed |
| dashboard | a panel under the windshield of a car, containing indicator dials |
| depressurize | to lower the air density in an aircraft |
| horsepower | a unit for measuring the power of engines or motors |
| ignition | the switch that activates an engine |
| limousine | a large automobile usually driven by a chauffer |
| mechanic | a person who works on or repairs vehicles |
| midair | space |
| odometer | instrument used to measure the distance traveled |
| parachute | an apparatus used to slow down the fall when jumping from an airplane |
| passenger | one who travels in a vehicle without participating in its operation |
| propeller | the revolving blades that move an airplane or a boat |
| throttle | a lever or pedal controlling the amount of fuel entering an engine |
| (VIZ uh BIL i tee) N. the distance to which it is possible to see (Due to the fog, there was limited visibility at the airport.) | the distance to which it is possible to see |