Otomian also have full series of front, central and back vowels.

Usually the higher a back vowel is, the more intense the rounding.

In general, does the former lateral get fully absorbed after back vowels?

Before a back vowel in the next syllable (a restoration).

But the grammarians have classified it as a back vowel.

The other tense back vowels have shifted as well.

It is more accurately described as an exolabial close back vowel.

Vowel harmony states that words may not contain both front and back vowels.

These contrast to only a single back vowel.

Endings are shown only in the back vowel harmony variant.

All of the back vowels are almost fully back.

Between back vowels, it may be silent or sound like a bilabial glide.

Thus, there is not a one-to-one correspondence in the spelling of back vowels.

See Phonological history of English low back vowels (17th-century changes).

Similar variation applies to the back vowels , and .

Albanian: back vowels are fronted before i in the following syllable.

It also led to the fronting of back vowels after /j/.

Some district dialects differentiate open front and back vowels.

Low back vowels have shifted, along with the rest of Western American English.

The close back vowels of Norwegian and Swedish are also compressed.

Merger of â and ā, articulated as a back vowel.

Result in some dialects, for example Anglian, was back vowels rather than diphthongs.

The close back vowels often use the consonant ו w to indicate their quality.

In technical terms, this listing goes from front vowels to back vowels.

This developed historically from a prenasalized stop before a relatively high back vowel, such as .