The Collaborative International Dictionary of English v.0.48:

Clich'e \Cli`ch['e]"\, n. [F. clich['e], from clicher to
   stereotype.]
   1. A stereotype plate or any similar reproduction of
      ornament, or lettering, in relief.
      [1913 Webster]

   2. a trite or obvious remark.

   Syn: platitude, banality, commonplace, bromide.
        [WordNet 1.5]

   Clich['e] casting, a mode of obtaining an impression from a
      die or woodcut, or the like, by striking it suddenly upon
      metal which has been fused and is just becoming solid;
      also, the casting so obtained.
      [1913 Webster]

WordNet (r) 3.0 (2006):

cliche
    n 1: a trite or obvious remark [syn: platitude, cliche,
         banality, commonplace, bromide]

Moby Thesaurus II by Grady Ward, 1.0:

64 Moby Thesaurus words for "cliche":
   abstraction, banality, banalness, bathetic, bromide, byword,
   catch phrase, catchword, chestnut, cliched, commonness,
   commonplace, commonplace expression, commonplaceness, corn,
   corniness, cry, fad word, familiar tune, familiarness, fustiness,
   general idea, generalization, generalized proposition,
   glittering generality, hack, hackneyed, hackneyed expression,
   hackneyed saying, hackneyedness, lieu commun, locus communis,
   mustiness, old joke, old saw, old song, old story, pet expression,
   platitude, platitudinousness, prosaicism, prosaism, prose,
   reiteration, retold story, rubber stamp, shibboleth, slogan,
   squareness, stale, staleness, stereotype, stereotyped saying,
   sweeping statement, tag, timeworn, tired cliche, trite saying,
   triteness, triticism, truism, twice-told tale, unoriginality,
   vogue word