[1] : The Collaborative International Dictionary of English v.0.48

substantiate \substan"tiate\, v. t. imp.  p. p.
   substantiated; p. pr.  vb. n. substantiating.
   1. to make to exist; to make real. --ayliffe.
      1913 webster

   2. to establish the existence or truth of by proof or
      competent evidence; to verify; as, to substantiate a
      charge or allegation; to substantiate a declaration.
      1913 webster

            observation is, in turn, wanted to direct and
            substantiate the course of experiment. --coleridge.
      1913 webster
see also:
substantiated substantiating 

[2] : WordNet (r) 2.0

substantiate
     v 1: establish or strengthen as with new evidence or facts; "his
          story confirmed my doubts"; "the evidence supports the
          defendant" syn: confirm, corroborate, sustain, support,
           affirm ant: negate
     2: represent in bodily form; "he embodies all that is evil
        wrong with the system"; "the painting substantiates the
        feelings of the artist" syn: incarnate, body forth, embody
     3: make real or concrete; give reality or substance to; "our
        ideas must be substantiated into actions" syn: realize,
         realise, actualize, actualise
     4: solidify, firm, or strengthen; "the president's trip will
        substantiate good relations with the former enemy country"
see also:
confirm corroborate sustain support affirm negate 
incarnate body forth embody realize realise 
actualize actualise 

[3] : Moby Thesaurus II by Grady Ward, 1.0

80 moby thesaurus words for "substantiate":
   adduce, affirm, anatomize, assay, atomize, attest, authenticate,
   back, back up, bear out, body, bolster, bring to test, buttress,
   certify, circumstantiate, cite, confirm, corporealize, corporify,
   corroborate, cut and try, demonstrate, descend to particulars,
   detail, document, embody, enter into detail, essay, experiment,
   exteriorize, externalize, fortify, give a try, give a tryout,
   give full particulars, have a go, incarnate, incorporate, instance,
   itemize, justify, manifest, materialize, objectify, particularize,
   personalize, personify, play around with, practice upon, probate,
   prove, put to trial, ratify, reembody, reincarnate, reinforce,
   research, road-test, run a sample, sample, shake down, specify,
   spell out, strengthen, substantialize, substantify, support,
   sustain, taste, test, transmigrate, try, try it on, try out,
   undergird, uphold, validate, verify, warrant

Substantiate >> S Words
Substantiate, definition of term: Substantiate
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