variance

Noun

• an activity that varies from a norm or standard
  • any variation in his routine was immediately reported
    

• an official dispensation to act contrary to a rule or regulation (typically a building regulation)
  • a zoning variance
    

• the quality of being subject to variation

• a difference between conflicting facts or claims or opinions
  • a growing divergence of opinion
    

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

• discord that splits a group

• an event that departs from expectations

Related words

• Synonyms: 
  variation , variability , variableness , discrepancy , disagreement , divergence , division , variant
• Antonyms: 
  invariability , invariableness , invariance