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]