orthography

名词 orthography:

1. a method of representing the sounds of a language by written or printed symbols
   同义词：writing system

1. Indictionaries, words are listed according to their orthography.
   在词典中，词是按照字母拼写顺序排列的。

or.thog.ra.phy

n.（名词）
【复数】 or.thog.ra.phies
The art or study of correct spelling according to established usage.
正字法：根据已建立的用法改正拼写的艺术和研究
The aspect of language study concerned with letters and their sequences in words.
拼字法：关于字母及其在词中顺序的那一部分言研究
A method of representing the sounds of language or a language by letters and diacritics; spelling.
表音法：用书写符号或印刷符号表现某一语言的读音的方法

【引伸】
orthog.rapher 或
orthog.raphist
n.（名词）