Digraph Letters

Digraph letters represent sounds that are commonly written using two letters in English but are treated as a single phonetic unit in Rainian Phonetica.

They are formed using specialized diacritical marks.

Rainian Phonetica currently has six digraph letters:

Letter	English representation	Example
s̄̄	sh	ship
c̄̄	ch	chip
t̄̄	unvoiced th	think
t̲̲	voiced th	this
z̄̄	zh	measure
n̄̄	ng	sing

The two forms of th are represented separately because English has both a voiced and an unvoiced pronunciation.