The Collaborative International Dictionary of English v.0.48:

narration \nar*ra"tion\, n. [L. narratio: cf. F. narration.]
   1. The act of telling or relating the particulars of an
      event; a recital of certain events, usually in
      chronological order; rehearsal.
      [1913 Webster]

   2. That which is related; the relation in words or writing of
      the particulars of any transaction or event, or of any
      series of transactions or events; a narrative; story;
      history.
      [1913 Webster]

   3. (Rhet.) That part of a discourse which recites the time,
      manner, or consequences of an action, or simply states the
      facts connected with the subject.
      [1913 Webster]

   Syn: Account; recital; rehearsal; relation; description;
        explanation; detail; narrative; story; tale; history.
        See Account.
        [1913 Webster]

WordNet (r) 3.0 (2006):

narration
    n 1: a message that tells the particulars of an act or
         occurrence or course of events; presented in writing or
         drama or cinema or as a radio or television program; "his
         narrative was interesting"; "Disney's stories entertain
         adults as well as children" [syn: narrative, narration,
         story, tale]
    2: the act of giving an account describing incidents or a course
       of events; "his narration was hesitant" [syn: narration,
       recital, yarn]
    3: (rhetoric) the second section of an oration in which the
       facts are set forth

Moby Thesaurus II by Grady Ward, 1.0:

33 Moby Thesaurus words for "narration":
   account, anecdotage, anecdote, chronicle, chronicling, describing,
   description, detailing, epic, epos, narrative, portrayal, reading,
   recital, recitation, recording, recountal, recounting, rehearsal,
   relating, relation, report, retelling, revelation, review, saga,
   story, tale, tale-telling, telling, unfolding, yarn,
   yarn spinning