The Collaborative International Dictionary of English v.0.48:

Coverage \Cov"er*age\, n.
   1. the range of items covered. Coverage may be small (narrow
      coverage], or large (broad coverage or wide
      coverage).
      [PJC]

   2. The aggregate of risks covered by the terms of a contract
      of insurance.
      [Webster 1913 Suppl.]

   3. the state of being insured; insurance.
      [PJC]

   4. the areas reached by a radio transmission signal, or group
      of people reached by a communications medium, such as
      television or a newspaper.
      [PJC]

   5. the range of topics treated in a discourse or document, or
      the depth to which a subject is discussed; as, a news
      program may have extensive coverage of an event.
      "gavel-to-gavel coverage of the Democratic convention."
      [PJC]

   6. the news as presented by reporters for newspapers or radio
      of television; as, they accused the paper of biased
      coverage of race relations.

   Syn: reporting, reportage.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

coverage
    n 1: the total amount and type of insurance carried [syn:
         coverage, insurance coverage]
    2: the extent to which something is covered; "the dictionary's
       coverage of standard English is excellent"
    3: the news as presented by reporters for newspapers or radio or
       television; "they accused the paper of biased coverage of
       race relations" [syn: coverage, reporting, reportage]