The Collaborative International Dictionary of English v.0.48:

Correspondent \Cor`re*spond"ent\, n.
   1. One with whom intercourse is carried on by letter.
      --Macaulay.
      [1913 Webster]

   2. One who communicates information, etc., by letter or
      telegram to a newspaper or periodical.
      [1913 Webster]

   3. (Com.) One who carries on commercial intercourse by letter
      or telegram with a person or firm at a distance.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Correspondent \Cor`re*spond"ent\ (-ent), a. [Cf. F.
   correspondant.]
   Suitable; adapted; fit; corresponding; congruous;
   conformable; in accord or agreement; obedient; willing.
   [1913 Webster]

         Action correspondent or repugnant unto the law.
                                                  --Hooker.
   [1913 Webster]

         As fast the correspondent passions rise. --Thomson.
   [1913 Webster]

         I will be correspondent to command.      --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

correspondent
    adj 1: similar or equivalent in some respects though otherwise
           dissimilar; "brains and computers are often considered
           analogous"; "salmon roe is marketed as analogous to
           caviar" [syn: analogous, correspondent]
    n 1: someone who communicates by means of letters [syn:
         correspondent, letter writer]
    2: a journalist employed to provide news stories for newspapers
       or broadcast media [syn: correspondent, newspaperman,
       newspaperwoman, newswriter, pressman]

Moby Thesaurus II by Grady Ward, 1.0:

210 Moby Thesaurus words for "correspondent":
   accordant, accused, addressee, affirmative, agreeable, agreeing,
   alike, all one, all the same, ally, alter ego, analogon, analogous,
   analogue, answerable, answering, associate, at one, automatic,
   balanced, brother, city editor, close copy, close match, coequal,
   coexistent, coexisting, coextensive, cognate, coherent, coincident,
   coincidental, coinciding, columnist, commensurate, communicator,
   companion, comparable, compatible, complement, complemental,
   complementary, concordant, concurring, conformable, congenator,
   congener, congenial, congruent, congruous, consentaneous,
   consentient, consistent, consonant, constant, continuous,
   convertible, cooperating, cooperative, coordinate, copy chief,
   copy editor, copyman, copyreader, correlate, correlative,
   corresponding, coterminous, counterpart, cub reporter, defendant,
   diaskeuast, duplicate, each other, editor, editorial writer,
   en rapport, equable, equal, equiparant, equipollent, equivalent,
   even, feature editor, fellow, flat, foreign correspondent,
   gazetteer, harmonious, homogeneous, homologous, identical, image,
   immutable, in accord, in agreement, in rapport, in sync,
   in synchronization, inaccordance, inharmony, interviewer,
   invariable, journalist, kindred spirit, leader writer, leg man,
   letter writer, level, libelee, like, like-minded, likeness,
   managing editor, match, matching, mate, measured, mechanical,
   methodic, monolithic, much the same, near duplicate, news editor,
   newsman, newspaperman, newspaperwoman, newswriter, obverse,
   of a kind, of a piece, of a size, of like mind, of one mind,
   on all fours, one another, ordered, orderly, own correspondent,
   paragrapher, paragraphist, parallel, paralleling, pen pal, pendant,
   persistent, picture, positive, pressman, prisoner, proportionate,
   publicist, reader, reciprocal, reciprocatist, reciprocative,
   reciprocator, reconcilable, regular, reporter, respondent, reviser,
   rewrite man, rewriter, robotlike, second self, self-consistent,
   similitude, simulacrum, sister, slotman, smooth, sob sister,
   soul mate, special correspondent, sports editor, stable, steadfast,
   steady, stringer, subeditor, such, suchlike, suspect, symbiotic,
   synchronized, synchronous, synonymous, systematic, tally,
   tantamount, the like of, the likes of, twin, unanimous, unbroken,
   unchangeable, unchanged, unchanging, undeviating, undifferentiated,
   undiversified, uniform, unisonant, unisonous, unruffled, unvaried,
   unvarying, war correspondent, writer