The Collaborative International Dictionary of English v.0.48:

Regard \Re*gard"\ (r?*g?rd"), v. t. [imp. & p. p. Regarded; p.
   pr. & vb. n. Regarding.] [F. regarder; pref. re- re +
   garder to guard, heed, keep. See Guard, and cf. Reward.]
   1. To keep in view; to behold; to look at; to view; to gaze
      upon.
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            Your niece regards me with an eye of favor. --Shak.
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   2. Hence, to look or front toward; to face. [Obs.]
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            It is peninsula which regardeth the mainland.
                                                  --Sandys.
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            That exceedingly beatiful seat, on the ass?ent of a
            hill, flanked with wood and regarding the river.
                                                  --Evelyn.
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   3. To look closely at; to observe attentively; to pay
      attention to; to notice or remark particularly.
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            If much you note him,
            You offened him; . . . feed, and regard him not.
                                                  --Shak.
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   4. To look upon, as in a certain relation; to hold as an
      popinion; to consider; as, to regard abstinence from wine
      as a duty; to regard another as a friend or enemy.
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   5. To consider and treat; to have a certain feeling toward;
      as, to regard one with favor or dislike.
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            His associates seem to have regarded him with
            kindness.                             --Macaulay.
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   6. To pay respect to; to treat as something of peculiar
      value, sanctity, or the like; to care for; to esteem.
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            He that regardeth thae day, regardeth it into the
            LOrd.                                 --Rom. xiv. 6.
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            Here's Beaufort, that regards nor God nor king.
                                                  --Shak.
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   7. To take into consideration; to take account of, as a fact
      or condition. "Nether regarding that she is my child, nor
      fearing me as if II were her father." --Shak.
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   8. To have relation to, as bearing upon; to respect; to
      relate to; to touch; as, an argument does not regard the
      question; -- often used impersonally; as, I agree with you
      as regards this or that.
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   Syn: To consider; observe; remark; heed; mind; respect;
        esteem; estimate; value. See Attend.
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The Collaborative International Dictionary of English v.0.48:

Regarding \Re*gard"ing\, prep.
   Concerning; respecting.
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Moby Thesaurus II by Grady Ward, 1.0:

31 Moby Thesaurus words for "regarding":
   about, anent, apropos, apropos of, as for, as regards, as respects,
   as to, concerning, in connection with, in point of, in re,
   in reference to, in regard to, in relation to, in relation with,
   in respect to, of, on, pertaining to, pertinent to, re,
   referring to, relating to, relative to, respecting, speaking of,
   touching, upon, with regard to, with respect to