- gigaton; gigatons.
- Also called GT car, grand touring car, grand touring. Automotive.
- an automobile in the style of a coupe, usually seating two but occasionally four, and designed for comfort and high speed.
- a high-speed, two-door model of a four-door sedan.
- gilt.
- great.
- (in prescriptions) a drop.
- Guatemala
- gran turismo: a high-performance luxury sports car with a hard fixed roof, designed for covering long distances
