the result you get by adding two or more amounts together and dividing the total by the number of amounts
The average of the three numbers 7, 12, and 20 is 13, because the total of 7, 12, and 20 is 39, and 39 divided by 3 is 13.
Prices have risen by an average of four percent over the past year.
My income's rather variable, but I earn £175 a day on average.
