The Collaborative International Dictionary of English v.0.48:

Fabrication \Fab`ri*ca"tion\, n. [L. fabricatio; cf. F.
   fabrication.]
   1. The act of fabricating, framing, or constructing;
      construction; manufacture; as, the fabrication of a
      bridge, a church, or a government. --Burke.
      [1913 Webster]

   2. That which is fabricated; a falsehood; as, the story is
      doubtless a fabrication.

   Syn: See Fiction.
        [1913 Webster]

WordNet (r) 3.0 (2006):

fabrication
    n 1: a deliberately false or improbable account [syn:
         fabrication, fiction, fable]
    2: writing in a fictional form [syn: fabrication,
       fictionalization, fictionalisation]
    3: the act of making something (a product) from raw materials;
       "the synthesis and fabrication of single crystals"; "an
       improvement in the manufacture of explosives"; "manufacturing
       is vital to Great Britain" [syn: fabrication,
       manufacture, manufacturing]
    4: the act of constructing something (as a piece of machinery)
       [syn: fabrication, assembly] [ant: disassembly,
       dismantlement, dismantling]
    5: the deliberate act of deviating from the truth [syn: lying,
       prevarication, fabrication]

Moby Thesaurus II by Grady Ward, 1.0:

128 Moby Thesaurus words for "fabrication":
   anatomy, architectonics, architecture, arrangement, artifact,
   assemblage, assembly, authorship, beginning, build, building,
   buildup, canard, casting, cock-and-bull story, coinage,
   combination, composition, compound, conception, concoction,
   conformation, constitution, construction, contrivance, contriving,
   conversion, crafting, craftsmanship, creation, creative effort,
   cultivation, deceit, design, devising, elaboration, embodiment,
   erection, extraction, extravaganza, fable, fabric, fairy tale,
   fake, falsehood, falsification, fashion, fashioning, fib, fiction,
   figment, forgery, forging, form, format, formation, forming,
   formulation, frame, framing, generation, getup, growing,
   handicraft, handiwork, harvesting, hatching, improvisation,
   incorporation, invention, junction, lie, machining, make, makeup,
   making, making do, manufacture, manufacturing, milling, mining,
   mintage, mixture, mold, molding, myth, opus, organic structure,
   organism, organization, origination, pattern, patterning, physique,
   piecing together, plan, prefabrication, preparation, prevarication,
   processing, producing, product, production, putting together,
   raising, refining, romance, setup, sham, shape, shaping, smelting,
   story, structure, structuring, syneresis, synthesis, tale,
   tectonics, texture, tissue, untruth, warp and woof, weave, web,
   work, workmanship, yarn