Width is like when you stretch your arms out to the sides as far as you can. The space from one hand to the other is the width. It’s like how wide a door is when you open it all the way. You can think of width as the side-to-side space something takes up.
Imagine a big book. When you look at it from the front, the width is how far it goes from the left side to the right side. It’s like measuring how big the smile on your face is when you’re really happy!
Think about a river. The width of the river is the distance from one bank to the other. It’s like how far you would have to jump to get across if you were a big, strong frog.
Or picture a pancake. The width is how wide it is from one edge to the other. It’s like drawing a line with a crayon from one side of the pancake to the other, and that line is the width!