variance

noun

1.
an event that departs from expectations
discrepancy variant
2.
discord that splits a group
division
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
unaccordance disagreement discrepancy divergence
5.
the quality of being subject to variation
variability variableness
Derived from:
variable variant
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
variation
Derived from:
variant vary