verb (v)

• concede the loss or worthlessness of something or somebody(verb.cognition)

  source: wordnet30
• write something fluently, and without hesitation(verb.creation)

  source: wordnet30
• cancel (a debt)(verb.social)

  source: wordnet30
• reduce the estimated value of something(verb.change)

  Example:
  For tax purposes you can write off the laser printer.
  

  Synonym:
  expense, write down
  

  source: wordnet30