The Collaborative International Dictionary of English v.0.48:

Disgrace \Dis*grace"\, v. t. [imp. & p. p. Disgraced; p. pr. &
   vb. n. Disgracing.] [Cf. F. disgracier. See Disgrace, n.]
   1. To put out of favor; to dismiss with dishonor.
      [1913 Webster]

            Flatterers of the disgraced minister. --Macaulay.
      [1913 Webster]

            Pitt had been disgraced and the old Duke of
            Newcastle dismissed.                  --J. Morley.
      [1913 Webster]

   2. To do disfavor to; to bring reproach or shame upon; to
      dishonor; to treat or cover with ignominy; to lower in
      estimation.
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            Shall heap with honors him they now disgrace.
                                                  --Pope.
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            His ignorance disgraced him.          --Johnson.
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   3. To treat discourteously; to upbraid; to revile.
      [1913 Webster]

            The goddess wroth gan foully her disgrace.
                                                  --Spenser.

   Syn: To degrade; humble; humiliate; abase; disparage; defame;
        dishonor; debase.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Disgrace \Dis*grace"\ (?; 277), n. [F. disgr[^a]ce; pref. dis-
   (L. dis-) + gr[^a]ce. See Grace.]
   1. The condition of being out of favor; loss of favor,
      regard, or respect.
      [1913 Webster]

            Macduff lives in disgrace.            --Shak.
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   2. The state of being dishonored, or covered with shame;
      dishonor; shame; ignominy.
      [1913 Webster]

            To tumble down thy husband and thyself
            From top of honor to disgrace's feet? --Shak.
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   3. That which brings dishonor; cause of shame or reproach;
      great discredit; as, vice is a disgrace to a rational
      being.
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   4. An act of unkindness; a disfavor. [Obs.]
      [1913 Webster]

            The interchange continually of favors and disgraces.
                                                  --Bacon.

   Syn: Disfavor; disesteem; opprobrium; reproach; discredit;
        disparagement; dishonor; shame; infamy; ignominy;
        humiliation.
        [1913 Webster]

WordNet (r) 3.0 (2006):

disgrace
    n 1: a state of dishonor; "one mistake brought shame to all his
         family"; "suffered the ignominy of being sent to prison"
         [syn: shame, disgrace, ignominy]
    v 1: bring shame or dishonor upon; "he dishonored his family by
         committing a serious crime" [syn: dishonor, disgrace,
         dishonour, attaint, shame] [ant: honor, honour,
         reward]
    2: reduce in worth or character, usually verbally; "She tends to
       put down younger women colleagues"; "His critics took him
       down after the lecture" [syn: take down, degrade,
       disgrace, demean, put down]
    3: damage the reputation of; "This newspaper story discredits
       the politicians" [syn: discredit, disgrace]

Moby Thesaurus II by Grady Ward, 1.0:

139 Moby Thesaurus words for "disgrace":
   abasement, abomination, asperse, aspersion, atrocity, bad,
   belittle, belittling, besmirch, black eye, black mark, blacken,
   blemish, blot, brand, bring down, bring into discredit, bring low,
   bring shame upon, burning shame, byword, byword of reproach,
   cast reproach upon, comedown, contempt, cry down, debase,
   debasement, debasing, decrial, decry, defame, deflate, deflation,
   defrock, degradation, degrade, deplume, depreciate, depreciation,
   derogate from, derogation, descent, desecration, detract from,
   detraction, dirty shame, disapproval, disapprove of, discredit,
   discrediting, disesteem, disfavor, dishonor, disparage,
   disparagement, displume, disrepute, dump, embarrass, embarrassment,
   error, evil, faint praise, hangdog look, harm, hold in contempt,
   humble, humbled pride, humbling, humiliate, humiliation, ignominy,
   impute shame to, indignity, infamy, iniquity, knavery, knock,
   knocking, let down, letdown, low-down dirty shame,
   lukewarm support, make little of, minimize, minimizing,
   mortification, mortify, obliquity, obloquy, odium, opprobrium,
   pity, profanation, put down, put out, put to shame, put-down,
   putting down, reflect discredit upon, reproach, reprobacy,
   run down, sacrilege, scandal, scandalize, self-abasement,
   self-abnegation, self-diminishment, setdown, shame, shamefacedness,
   shamefastness, sin, slight, slighting, slur, smear, smirch,
   sour grapes, speak ill of, spot, stain, stigma, stigmatize,
   submit to indignity, sully, taint, tarnish, terrible thing,
   unfrock, vilification, vilify, villainy, violation, vitiate,
   vitiation, wrong



Bouvier's Law Dictionary, Revised 6th Ed (1856):

DISGRACE. Ignominy, shame, dishonor. No witness is required to disgrace
himself. 13 How. St. Tr. 17, 334; 16 How. St. Tr. 161. Vide Crimination; To
Degrade.