The Collaborative International Dictionary of English v.0.48:

Fabricate \Fab"ri*cate\, v. t. [imp. & p. p. Fabricated; p.
   pr. & vb. n. Fabricating.] [L. fabricatus, p. p. of
   fabricari, fabricare, to frame, build, forge, fr. fabrica.
   See Fabric, Farge.]
   1. To form into a whole by uniting its parts; to frame; to
      construct; to build; as, to fabricate a bridge or ship.
      [1913 Webster]

   2. To form by art and labor; to manufacture; to produce; as,
      to fabricate woolens.
      [1913 Webster]

   3. To invent and form; to forge; to devise falsely; as, to
      fabricate a lie or story.
      [1913 Webster]

            Our books were not fabricated with an accomodation
            to prevailing usages.                 --Paley.
      [1913 Webster]

WordNet (r) 3.0 (2006):

fabricate
    v 1: put together out of artificial or natural components or
         parts; "the company fabricates plastic chairs"; "They
         manufacture small toys"; He manufactured a popular cereal"
         [syn: manufacture, fabricate, construct]
    2: make up something artificial or untrue [syn: fabricate,
       manufacture, cook up, make up, invent]

Moby Thesaurus II by Grady Ward, 1.0:

102 Moby Thesaurus words for "fabricate":
   assemble, beget, breed, bring forth, bring into being, build,
   build up, call into being, cast, coin, combine, compose, compound,
   conceit, conceive, conceptualize, concoct, consist of, constitute,
   construct, contrive, cook, cook up, counterfeit, create, design,
   develop, devise, discover, dream up, elaborate, embody, engender,
   enter into, erect, evolve, experience imaginatively, extrude, fake,
   falsify, fancy, fantasize, fashion, feign, fictionalize, forge,
   form, formulate, frame, fudge, fudge together, generate, get up,
   give being to, give rise to, go into, hatch, hoke up, ideate,
   imagine, improvise, incorporate, indite, invent, join, make,
   make do with, make up, manufacture, mature, merge in, mint, mix,
   mold, organize, originate, patch together, piece together, plan,
   prefabricate, prepare, procreate, produce, put together, put up,
   raise, rear, run up, set up, shape, spawn, strike out, structure,
   suppose, synthesize, think out, think up, trump up, turn out,
   unite in, whomp up, write