Vowels

Front vowels can only combine with /w/ while back vowels can only combine with /j/ (central vowels can act as both front and back vowels).

One effect of this is that back vowels are most commonly rounded while front vowels are most commonly unrounded; another is that rounded vowels tend to plot to the right of unrounded vowels in vowel charts.

For example, long vowels, nasal vowels, and various phonations may or may not be counted separately; indeed, it may sometimes be unclear if phonation belongs to the vowels or the consonants of a language.

In Cheyenne, tone arose via vowel contraction; the long vowels of Proto-Algonquian contracted into high-pitched vowels in Cheyenne while the short vowels became low-pitched.

Others distinguish compressed rounded vowels, in which the corners of the mouth are drawn together, from compressed unrounded vowels, in which the lips are compressed but the corners remain apart as in spread vowels.

Rhotic vowels main Rhotic vowels are the "R-colored vowels" of American English and a few other languages.

Rounding harmony only affects the open vowels, e, o, a, ɔ. citation Turkic languages Azerbaijani Azerbaijani 's system of vowel harmony has both front/back and rounded/unrounded vowels. citation Tatar Tatar has no neutral vowels.

Sihler says that /l/ was clear before /i/ and dark before other vowels, but Allen says that /l/ was dark before back vowels in pre-Classical Latin and clear before both front and back vowels in Classical Latin.

There are five vowels spaced more or less evenly around the vowel space, with two back rounded vowels, one back unrounded vowel, and two front or near-front unrounded vowels.

The restriction on final long vowels does not apply to the spoken dialects, where original final long vowels have been shortened and secondary final long vowels have arisen from loss of original final -hu/hi.

These eight vowels are known as the eight 'primary cardinal vowels', and vowels like these are common in the world's languages.

Vowels Users of Arabic usually write long vowels but omit short ones, so readers must utilize their knowledge of the language in order to supply the missing vowels.

Wiik,sfn cited in Gimson,sfn published durations of English vowels with a mean value of 17.2 csec. for short vowels before voiced consonants but a mean value of 16.5 csec for long vowels preceding voiceless consonants.

Wukari allows oral vowels in syllables like ba, mba and nasal vowels in bã, mã, suggesting that nasals become prenasalized stops before oral vowels.

Two of them have more vowels than consonants in their last names and two have more vowels than consonants in their first names.

Almost all Inuit language variants have only three basic vowels and make a phonological distinction between short and long forms of all vowels.

As in many other Polynesian languages, diphthongs in Māori vary only slightly from sequences of adjacent vowels, except that they belong to the same syllable, and all or nearly all sequences of nonidentical vowels are possible.

Back vowels have low F2 frequencies while front vowels have high F2 frequencies.

Bulgarian is typically analyzed as having six vowels, but at least two more reduced vowels can be encountered in everyday speech.

C is always pronounced /s/ in front of the front vowels e, i, and y, thus ç is never found in front of front vowels.