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English word:    

subtraction

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subtraction in WordNet English dictionary

noun
  1. the act of subtracting (removing a part from the whole)
    "he complained about the subtraction of money from their paychecks"
    subtraction  deduction 
  2. an arithmetic operation in which the difference between two numbers is calculated
    "the subtraction of three from four leaves one"; "four minus three equals one"
    subtraction  minus 
WordNet Lexical Database v3.0, © 2006 Princeton University