noun (n)

• the act of removing or getting rid of something(noun.act)

  Synonym:
  riddance
  

  source: wordnet30
• the bodily process of discharging waste matter(noun.process)

  Synonym:
  evacuation, excreting, excretion, voiding
  

  source: wordnet30
• analysis of a problem into alternative possibilities followed by the systematic rejection of unacceptable alternatives(noun.cognition)

  Synonym:
  reasoning by elimination
  

  source: wordnet30
• the act of removing an unknown mathematical quantity by combining equations(noun.act)

  source: wordnet30
• the murder of a competitor(noun.act)

  Synonym:
  liquidation
  

  source: wordnet30
• The act of expelling or throwing off(noun)

  source: webster1913