We diagram words to look for letter and syllable patterns, label long and short vowel sounds, and individual letter sounds. / Julia Knarr, The Soulard School.

In fact, due to the imperfect match between writing and speech, there are other "sometimes" vowels: W is a consonant in "we" and part of a diphthong vowel in "now." ...

The great vowel shift did not involve the shortening or the forward movement of vowels, as Michael Erard says (29 March, p 28). Only the long vowels shifted – upwards – or became diphthongs ...

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They are consonant+vowel combinations 'wuh' and 'yu.' A, E, I, O, U and sometimes Y is not a bad rule of thumb. Most of the time a spoken vowel will be represented by one of those written forms.

How many vowels does English have? Five, right? A, E, I, O, U. Oh, and sometimes Y. So, six? Actually, English has at least 14 different vowel sounds and, depending on the speaker and dialect ...

A diphthong is a glide from one vowel to another that takes place within one syllable. For example, the vowel sound in “hour” glides from “ah” to “oo.” ...

Most notably, you can see from the higher F2 that Mercury’s vowel is much more fronted and becomes increasingly so over the course of the vowel’s production. This points to a diphthong that was not ...

At least in their one-syllable versions. A diphthong is a glide from one vowel to another that takes place within one syllable. For example, the vowel sound in "hour" glides from "ah" to "oo." ...