Variance /(?)/

Va·ri·ance

Variance

n.
  1. The quality or state of being variant; change of condition; variation.
  2. Difference that produces dispute or controversy; disagreement; dissension; discord; dispute; quarrel.
    That which is the strength of their amity shall prove the immediate author of their variance.
  3. A disagreement or difference between two parts of the same legal proceeding, which, to be effectual, ought to agree, -- as between the writ and the declaration, or between the allegation and the proof. (Law)
  4. The expected value of the square of the deviation from the mean of a randomly distributed variable; the second moment about the mean. This is also the square of the standard deviation. (Statistics)

Phrases & Compounds
At variance
in disagreement; in a state of dissension or controversy; at enmity.