NOUN (1)

1. a member of a Catholic church;


ADJECTIVE (2)

1. of or relating to or supporting Catholicism;
- Example: "the Catholic Church"

2. free from provincial prejudices or attachments;
- Example: "catholic in one's tastes"

The Collaborative International Dictionary of English v.0.48:

Catholic \Cath"o*lic\, n.
   1. A person who accepts the creeds which are received in
      common by all parts of the orthodox Christian church.
      [1913 Webster]

   2. An adherent of the Roman Catholic church; a Roman
      Catholic.
      [1913 Webster]

   Old Catholic, the name assumed in 1870 by members of the
      Roman Catholic church, who denied the ecumenical character
      of the Vatican Council, and rejected its decrees, esp.
      that concerning the infallibility of the pope, as contrary
      to the ancient Catholic faith.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Catholic \Cath"o*lic\ (k[a^]th"[-o]*[i^]k), a. [L. catholicus,
   Gr. kaqoliko`s, universal, general; kata` down, wholly +
   "o`los whole, probably akin to E. solid: cf. F. catholique.]
   1. Universal or general; as, the catholic faith.
      [1913 Webster]

            Men of other countries [came] to bear their part in
            so great and catholic a war.          --Southey.
      [1913 Webster]

   Note: This epithet, which is applicable to the whole
         Christian church, or its faith, is claimed by Roman
         Catholics to belong especially to their church, and in
         popular usage is so limited.
         [1913 Webster]

   2. Not narrow-minded, partial, or bigoted; liberal; as,
      catholic tastes.
      [1913 Webster]

   3. Of or pertaining to, or affecting the Roman Catholics; as,
      the Catholic emancipation act.
      [1913 Webster]

   Catholic epistles, the epistles of the apostles which are
      addressed to all the faithful, and not to a particular
      church; being those of James, Peter, Jude, and John.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Catholic
    adj 1: of or relating to or supporting Catholicism; "the
           Catholic Church"
    2: free from provincial prejudices or attachments; "catholic in
       one's tastes"
    n 1: a member of a Catholic church

Moby Thesaurus II by Grady Ward, 1.0:

54 Moby Thesaurus words for "catholic":
   all-comprehending, all-comprehensive, all-covering, all-embracing,
   all-encompassing, all-filling, all-including, all-inclusive,
   all-pervading, allover, broad, broad-gauged, broad-minded,
   catholicon, comprehensive, cosmic, cosmopolitan, country-wide,
   cure-all, eclectic, ecumenic, ecumenical, ecumenistic, elixir,
   extensive, galactic, general, generic, global, heaven-wide,
   inclusive, indeterminate, international, large-scale, liberal,
   national, nondenominational, noninsular, nonsectarian, nostrum,
   planetary, spacious of mind, total, unbigoted, unfanatical,
   unhidebound, universal, unparochial, unprovincial, wide,
   wide-minded, widespread, world-wide, worldwide