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English definition of “variance”

variance

noun uk   /ˈveə.ri.əns/ us    /ˈver.i-/
[C or U] formal the fact that two or more things are different, or the amount or number by which they are different: There has been some unusual variance in temperature this month. I could detect subtle variances in fragrance as we strolled through the garden. [C] US specialized law official permission to do something that is not normally allowed: We had to get a (zoning) variance before we could build the extension on our house. be at variance with sb/sth to be in disagreement with someone or something, or to be different from them or it: Young people's reactions to world events are often at variance with those of their parents. Most heavy metal fans are under 20 - this is at variance with the age of the bands themselves, who are often over 40.
(Definition of variance from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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