1.AdverbRegarding or relating to orthography (the way in which languages, usually natural languages, are written).
"Although it is possible to represent this phonetic distinction orthographically, such representation is not emically realized."
2.AdverbAccording to standardized or formally accepted orthography: using proper spelling, and (more strictly) proper spelling, punctuation, capitalization, and italics.
"stylings that are orthographically valid (acceptable), albeit not preferable"
3.AdverbUsing an orthographic projection (a way of showing three-dimensional objects in two-dimensional engineering drawings).
"To represent an internal feature orthographically, dashed lines are used instead of solid ones."