The Collaborative International Dictionary of English v.0.48:

Personify \Per*son"i*fy\, v. t. [imp. & p. p. Personified; p.
   pr. & vb. n. Personifying.] [Person + -fy: cf. F.
   personnifier.]
   1. To regard, treat, or represent as a person; to represent
      as a rational being.
      [1913 Webster]

            The poets take the liberty of personifying inanimate
            things.                               --Chesterfield.
      [1913 Webster]

   2. To be the embodiment or personification of; to
      impersonate; as, he personifies the law.
      [1913 Webster]

WordNet (r) 3.0 (2006):

personify
    v 1: invest with or as with a body; give body to [syn: body,
         personify]
    2: represent, as of a character on stage; "Derek Jacobi was
       Hamlet" [syn: embody, be, personify]
    3: attribute human qualities to something; "The Greeks
       personated their gods ridiculous" [syn: personify,
       personate]

Moby Thesaurus II by Grady Ward, 1.0:

45 Moby Thesaurus words for "personify":
   adumbrate, body, body forth, corporealize, corporify, demonstrate,
   emblematize, embody, epitomize, exemplify, exteriorize,
   externalize, figure, foreshadow, humanize, illustrate, image,
   impersonate, incarnate, incorporate, manifest, materialize,
   metaphorize, mirror, objectify, personalize, personate, prefigure,
   pretypify, project, realize, reembody, reflect, reincarnate,
   represent, shadow, shadow forth, similize, stand for,
   substantialize, substantiate, substantify, symbolize, transmigrate,
   typify