双対
  そうつい
  noun (common) (futsuumeishi)
  mathematics
  duality
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  相対
  双対
  そうたい
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  antonym: 絶対・3
  relativity
  noun or verb acting prenominally (other than the above)
  relative
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