Source : Webster's Revised Unabridged Dictionary (1913)

Signalize \Sig"nal*ize\, v. t. [imp. & p. p. {Signalized}; p.
   pr. & vb. n. {Signalizing}.] [From {Signal}, a.]
   1. To make signal or eminent; to render distinguished from
      what is common; to distinguish.

            It is this passion which drives men to all the ways
            we see in use of signalizing themselves. --Burke.

   2. To communicate with by means of a signal; as, a ship
      signalizes its consort.

   3. To indicate the existence, presence, or fact of, by a
      signal; as, to signalize the arrival of a steamer.

Source : WordNet®

signalize
     v 1: provide with traffic signals; "signalize a busy
          intersection" [syn: {signalise}]
     2: communicate silently and non-verbally by signals or signs;
        "He signed his disapproval with a dismissive hand
        gesture"; "The diner signaled the waiters to bring the
        menu" [syn: {sign}, {signal}, {signalise}]
     3: point out carefully and clearly [syn: {signalise}, {point
        out}, {call attention}]
     4: make conspicuous or noteworthy [syn: {signalise}, {distinguish}]