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Definition of 'sin'


  1. estrangement from god
       Synonyms: sinfulness wickedness
  2. an act that is regarded by theologians as a transgression of God's will
       Synonyms: sinning
  3. ratio of the opposite side to the hypotenuse of a right-angled triangle
       Synonyms: sine
  4. (Akkadian) god of the moon; counterpart of Sumerian Nanna
  5. the 21st letter of the Hebrew alphabet
  6. violent and excited activity; "they began to fight like sin"
       Synonyms: hell


  1. commit a sin; violate a law of God or a moral law
       Synonyms: transgress trespass
  2. commit a faux pas or a fault or make a serious mistake; "I blundered during the job interview"
       Synonyms: blunder boob goof

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