Definition of "written language" []

Communication by means of written symbols (either printed or handwritten) (noun)

WordNet. Princeton University. 2010.

Use "written language" in a sentence

"Aside from giving no proof that he knows the spoken or written language of that market place, Geertz affixes twenty-eight pages of double-columned footnotes in extremely fine print as bibliographical and critical support for his description of a Moroccan souk."
"Tarak paused, raised his wrist-lamp, and illuminated a wall etched and painted in colorful pictographs, the earliest written language of the Nasat."

Words like "written language"

code codification communication correspondence

piece of writing prescription print reading

reading material transcription writing written material

written text