In other cases, Portuguese reduces consecutive vowels to a diphthong, again resulting in one syllable fewer:

However, strings of consecutive vowels are possible - indeed prevalent - in the language.

Vowel coalescence or fusion, which is the process by which two consecutive vowels merge, is a fairly common phenomenon throughout Japan.

In two consecutive vowels the stressed vowel is always long and the unstressed is always short.

In Portuguese, the grave accent indicates the contraction of two consecutive vowels in adjacent words (crasis).

A vowel is dropped before another vowel, so there are never two consecutive vowels.

Euouae, a medieval musical term, is the longest English word consisting only of vowels, and the word with the most consecutive vowels.

For the following, there are alternative forms which elide the consecutive vowels, such as kilannum, megannum, etc.

There can never be multiple consecutive vowels in Swedish; they are always replaced with a single vowel.

Assimilation of consecutive vowels: o urubu ("the vulture") becomes u rubu.