Yes, variance is a Scrabble word!

Noun

1. An event that departs from expectations

2. Discord that splits a group

3. The second moment around the mean; the expected value of the square of the deviations of a random variable from its mean value

4. A difference between conflicting facts or claims or opinions

5. The quality of being subject to variation

6. An official dispensation to act contrary to a rule or regulation (typically a building regulation)

7. An activity that varies from a norm or standard