Source : Webster's Revised Unabridged Dictionary (1913)

Graffiti \Graf*fi"ti\, n. pl. [It., pl. of graffito scratched]
   Inscriptions, figure drawings, etc., found on the walls of
   ancient sepulchers or ruins, as in the Catacombs, or at
   Pompeii.

Source : WordNet®

graffiti
     n : a rude decoration inscribed on rocks or walls [syn: {graffito}]

graffito
     n : a rude decoration inscribed on rocks or walls [syn: {graffiti}]
     [also: {graffiti} (pl)]

graffiti
     See {graffito}

Source : Free On-Line Dictionary of Computing

Graffiti
     
        Handwriting recognition software for the {Newton} and {Zoomer}
        which recognises symbols that aren't necessarily letters.
        This gives greater speed and accuracy.  It was written by
        {Berkeley Softworks}.
     
        (1995-01-24)