noun (n)

• a reduction in the gross amount on which a tax is calculated; reduces taxes by the percentage fixed for the taxpayer's income bracket(noun.possession)

  Synonym:
  tax deduction, tax write-off
  

  source: wordnet30
• an amount or percentage deducted(noun.possession)

  Synonym:
  discount
  

  source: wordnet30
• something that is inferred (deduced or entailed or implied)(noun.cognition)

  Synonym:
  entailment, implication
  

  source: wordnet30
• reasoning from the general to the particular (or from cause to effect)(noun.cognition)

  Synonym:
  deductive reasoning, synthesis
  

  source: wordnet30
• the act of subtracting (removing a part from the whole)(noun.act)

  Synonym:
  subtraction
  Antonym:
  addition
  

  source: wordnet30
• the act of reducing the selling price of merchandise(noun.act)

  Synonym:
  discount, price reduction
  

  source: wordnet30
• Act or process of deducing or inferring.(noun)

  source: webster1913