Dictionary.com's definition of "dimension"

# Physics. A physical property, such as mass, length, time, or a combination thereof, regarded as a fundamental measure or as one of a set of fundamental measures of a physical quantity: Velocity has the dimensions of length divided by time.

A dimension IS a measurement. How do we measure our world? We don't measure it in gallons. Gallons is a dimension, not of our world though. The dimensions of the world we live in are length, width, height, and time.

Just stop arguing this with me. I AM RIGHT.