1
a kind of train moving beneath the surface of the ground
2
a type of aircraft deriving both lift and propulsion form one or two sets of horizontally revolving rotors and capable of moving vertically and horizontally
3
a two-wheeled 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 and a weigth greater than that of the air it displaces
6
a series of railway carriages or wagons moved as a unit by a locomotive
7
a large road vehicle, used for carrying goods, materials, or troops
8
a large seagoing boat
9
a vehicle consisting of two wheels propelled by pedals
10
a medium-sized sailing boat equipped for cruising or racing
