A coach is like a big bus that can hold lots of people. It has a driver who drives the coach and makes sure it gets to the right place.
Inside the coach, there are seats for people to sit on. Some coaches have fancy features like armrests, cup holders, and even TVs.
Coaches are often used for long journeys, like when you go on a holiday with your family. Instead of everyone driving in their own car, you can all get on a coach together and enjoy the journey.
Coaches are also used for things like school trips or sports teams traveling to games. It's a great way for lots of people to travel together safely and comfortably.