Autobus
In short
A large road vehicle designed to carry many passengers at once. It is a key part of public transport systems used for city travel or long distances.
In plain words
It is much bigger than a car and can hold dozens of people. People use it to get around towns or between cities without needing their own vehicle.
A simple example
A double-decker bus in London carries many commuters through city streets. A coach might take a group of tourists on a long trip across the country.
Why it matters
Buses help reduce traffic congestion and lower pollution by moving more people in one vehicle. They provide affordable travel for people who do not own cars.
Easy to mix up
Do not confuse a bus with a coach; while both carry people, coaches are specifically built for long-distance comfort.