is a sound produced when two vowels are pronounced together, creating a new
sound for a language. The word is a compound word, from the Greek words for
"two" and "voice."
are eight such combinations of vowels in Greek, as listed below, all of
which have English equivalents. The proper pronunciation of some of the
diphthongs is disputed, particularly for ai, au and ou.
- Diphthongs end in u or i.