1
a kind of train movingbeneath the surface of the ground.
2
A type of aircraft deriving both lift and propulsion from one or two sets of horizontally revolving rotors and capable of moving vertically and horizontally.
3
a two- wheled vehicle that is powered by a motor and has no pedals
4
an aerodynamic warship designed to operate completely submerged in the sea for long periods
5
a powered flying vehicle with fixed wings and a weight greater than that of the air it displaces
6
A medium-sized sailing boat equipped for cruising or racing
7
a series of railway carriages of wagens moved as a unit by a locomotive
8
a large road vehicle, used for carrying goods, materials, or troops
9
a large seagoing boat
