The spelling of the word "Rhegan" is a bit complicated. It's pronounced as /ˈrɛɡən/, with the stress on the first syllable. The letter "R" is pronounced as [ɹ], similar to the sound in "red". The following "h" is silent and only serves to indicate the length of the vowel "e", which is pronounced as [ɛ]. The final letters "g" and "an" are pronounced as [ɡ] and [ən], respectively. So, in summary, "Rhegan" is pronounced as "REH-gən".