a type of aircraft without wings, that has one or two sets of large blades that go round very fast on top. It can land and take off vertically and can stay in one place in the air:

a long motor vehicle with comfortable seats, used to take groups of people on journeys

a state in which or a place where you are safe and not in danger or at risk

a large boat for travelling on water, especially across the sea:

a belt that fastens around you when you are travelling in a vehicle or aircraft and holds you in your seat, in order to reduce the risk of being injured in an accident

a ship that can travel underwater:

a machine, usually with wheels and an engine, used for transporting people or goods, especially on land:

a large number of vehicles close together and unable to move or moving very slowly

a small vehicle for travelling on water

to change the direction, order, position, result, etc. of something to its opposite:

a very large military ship with big guns

a place with one or more buildings and platforms where trains stop for people to get on or off: