| Definition - The mental capability of understanding written symbols.
1. This differs from literacy in that you need word-vision capability to even attempt to become literate.
Oxford English Dictionary - Its first citation is from 1899:
"Visual ideation, more particularly in reference to the association of written symbols with their meaning—that is, *word-vision—is specially impaired by lesion of the left angular gyrus."
(Allbutt's Syst. Med. VII. 313)