Is width also called breadth?

Although the words breadth and width sound almost the same, there is a difference between the two words. If you go through the dictionary, you will notice that breadth refers to the distance from side to side of a thing. Also, width refers to the measurement or extent of something from side to side.

What's the difference between breadth and depth?

One useful approach to organizing and describing college-level learning is to think about the breadth and depth of the learning. Breadth of learning refers to the full span of knowledge of a subject. Depth of learning refers to the extent to which specific topics are focused upon, amplified and explored.