Source : Webster's Revised Unabridged Dictionary (1913)

Immortalize \Im*mor"tal*ize\, v. t. [imp. & p. p.
   {Immortalized}; p. pr. & vb. n. {Immortalizing}.] [Cf. F.
   immortaliser.]
   1. To render immortal; to cause to live or exist forever.
      --S. Clarke.

   2. To exempt from oblivion; to perpetuate in fame.

            Alexander had no Homer to immortalize his quilty
            name.                                 --T. Dawes.

Immortalize \Im*mor"tal*ize\, v. i.
   To become immortal. [R.]

Source : WordNet®

immortalize
     v 1: be or provide a memorial to a person or an event; "This
          sculpture commemorates the victims of the concentration
          camps"; "We memorialized the Dead" [syn: {commemorate},
          {memorialize}, {memorialise}, {immortalise}, {record}]
     2: make famous for ever [syn: {immortalise}, {eternize}, {eternise},
         {eternalize}, {eternalise}]