A measurement of length in one direction.

Examples: width, depth and height are dimensions.

A line has one dimension,

a square has two dimensions,

and a cube has three dimensions.

In Physics it can also mean any physical measurement such as length, time, mass.

Examples: width, depth and height are dimensions.

A line has one dimension,

a square has two dimensions,

and a cube has three dimensions.

In Physics it can also mean any physical measurement such as length, time, mass.