Sentence:  What belongs to the <WSD>graphosphere</WSD> always implies some kind of surface, and even the materiality of some kind of backing or support; but not all graphemes are necessarily imprinted on paper, or the skin, photographic film, or a piece of parchment. 
Meaning of the word marked with <WSD> tags:  The "totality of graphic devices used to record, store, display, and disseminate messages and information, and the social and cultural spaces in which they figure."<ref>Simon Franklin, 2011, "[https://muse.jhu.edu/article/448210 Mapping the Graphosphere: Cultures of Writing in Early 19th-Century Russia (and Before)]," "Kritika: Explorations in Russian and Eurasian History", Vol. 12, No. 3, Summer 2011</ref>