The Hylain Language is a language spoken throughout Hyrule.
This "language" has been changed by Icy to better suit her and the wiki. It is now the real-world language called Latin and uses the same alphabet (the Latin-alphabet) as the English language.
The Hylain Language is used throughout Hyrule. Hyrule recently started to use English as their main language, though most parts of Hyrule still only speak Hylain.