Height is a vertical line.
Width is a horizontal line.
When you have both height and width, you can create a 2-dimensional image.
Depth is the 3rd dimension.

Combine these first 3 dimensions – height, width, and depth – and you have created volume: space.

The 4th dimension is Time. 
These first 4 dimensions encompass our physical reality, often called the spacetime continuum

We have not yet agreed upon names for dimensions 5 through 11.