1
a heavier-than-air powered flying vehicle with fixed wings
2
a large impermeable bag inflated with a lighter-than-air gas, designed to rise and float in the atmosphere. It may have a basket or gondola for carrying passengers, etc
3
a vehicle with a tubular metal frame mounted on two spoked wheels, one behind the other. The rider sits on a saddle, propels the vehicle by means of pedals that drive the rear wheel through a chain, and steers with handlebars on the front wheel
4
a line of coaches or wagons coupled together and drawn by a railway locomotive
5
a vessel propelled by engines or sails for navigating on the water, esp a large vessel that cannot be carried aboard another, as distinguished from a boat
6
a self-propelled road vehicle designed to carry passengers, esp one with four wheels that is powered by an internal-combustion engine
