Definition of variance noun from the Oxford Advanced American Dictionary

  

variance

 noun
noun
NAmE//ˈvɛriəns//
 
[uncountable, countable](formal)
 
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  • the amount by which something changes or is different from something else variance in temperature a note with subtle variances of pitch
  • Idioms
    at variance (with somebody/something)(formal)
     
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    disagreeing with or opposing someone or something These conclusions are totally at variance with the evidence. He uttered a string of oaths, so oddly at variance with his usual smooth and civilized manner.
    See the Oxford Advanced Learner's Dictionary entry: variance