Question

What does the word rate mean in math

Answer 1

A ratio is something that compares two quantities having different units of measure

Answer 2

In mathematics, a rate is the ratio between two related quantities. Often it is a rate of change. If the unit or quantity in respect of which something is changing is not specified, usually the rate is per unit of time. However, a rate of change can be specified per unit of time, or per unit of length or mass or another quantity.