orthographic

The word orthographic comes from Greek roots meaning "correct writing." In its most common language-related sense, it describes anything connected to the conventional spelling system of a language: how words are written, which letter patterns are accepted, and what counts as the standard written form. It is not mainly about grammar. It is about spelling and the structure of written words.

You will often see it in linguistics, education, and reading research. People talk about orthographic patterns when they mean common spelling patterns, orthographic knowledge when they mean knowledge of how words are normally written, and orthographic errors when they mean misspellings. A child learning to read develops orthographic awareness, which helps them recognize familiar letter combinations and written word forms.

The related noun orthography means the writing system itself, including spelling conventions and sometimes punctuation. Researchers may study orthographic depth, which is how closely spelling matches pronunciation. English is often called a deep orthography because spelling and sound do not always match clearly, while Spanish or Finnish are usually described as shallower because the match is closer.

There is also a separate technical use in phrases like orthographic projection in drawing, engineering, and architecture. There, it refers to a way of showing a three-dimensional object in flat views by using parallel lines. That sense is valid, but if you see orthographic by itself in language learning, it usually refers to spelling and writing systems, not technical drawing.

So in everyday language study, orthographic usually points to the rules and patterns that tell us how words look in writing and what spellings are considered standard.