noun (n)

• promise of reimbursement in the case of loss; paid to people or companies so concerned about hazards that they have made prepayments to an insurance company(noun.possession)

  source: wordnet30
• written contract or certificate of insurance(noun.communication)

  Synonym:
  insurance policy, policy
  

  source: wordnet30
• protection against future loss(noun.state)

  Synonym:
  indemnity
  

  source: wordnet30
• The act of insuring, or assuring, against loss or damage by a contingent event; a contract whereby, for a stipulated consideration, called premium, one party undertakes to indemnify or guarantee another against loss by certain specified risks. Cf. Assurance, n., 6.(noun)

  source: webster1913