Spelling reform
changing of the fundamental parts of orthography of a language
Portuguese Language Orthographic Agreement of 1990
reforms of Russian orthography
Belarusian orthography reform of 1933
reforms of Pampangan orthography
Bello orthography
English-language spelling reform
Enhanced Indonesian Spelling System
Ukrainian orthography of 2019
German orthography reform of 1996
kanji homophone substitution
Simplified Tamil script