In Tiengòne, there are three types of vowels: short vowels, long vowels, and long vowel pairs.

There may be a reduction of vowels.

Consonants are harder than vowels.

In the formation of Turkish words, both the meetings of vowels and of consonants follow harmony principles.

Classical Nahuatl had four vowels, /a/, /e/, /i/, and /o/, which could be either long or short.

Are there any languages with no vowels?

How many vowels does English have? If you said five, you were wrong. Standard British English has twelve, not counting diphthongs.

English speakers can pronounce a lot of vowels.

The two vowels form a diphthong that is difficult to pronounce.

There are many more vowels in French than in Japanese.