Bus
In short
A large road vehicle designed to carry many passengers at once. It sits between a car and a train in terms of capacity.
In plain words
A bus is a big motor vehicle used for public transport. It carries more people than a van but fewer than a train. You can find single-deck, double-decker, or even very long articulated versions.
A simple example
A double-decker bus in London carries dozens of commuters through city streets. A small minibus might be used to shuttle a few people to a local station.
Why it matters
Buses provide an affordable way for many people to travel without needing a private car. They help reduce traffic congestion and lower pollution in busy cities.
Easy to mix up
Do not confuse a bus with a coach, which is a bus specifically designed for long-distance travel with more comfort.