Average

noun

1. a single value (such as a mean, mode, or median) that summarizes or represents the general significance of a set of unequal values
2. mean sense 1b
3. an estimation of or approximation to an arithmetic mean
4. a level (as of intelligence) typical of a group, class, or series
5. a ratio expressing the average performance especially of an athletic team or an athlete computed according to the number of opportunities for successful performance