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Glossary: vowel

Explanation

A vowel is a speech sound which is produced without any closure or obstruction of the vocal tract.

Vowels can form syllables by themselves, or they may combine with consonants.

In the English writing system, the letters a, e, i, o, u and y can represent vowels.

The term 'vowel' is used in two ways: first, for a sound which is made with the mouth fairly open and which forms the central part of a syllable; and second, for a letter which is used to write a vowel sound, e.g. a, e, i, o, u. See also the contrasting term consonant.

Letters and sounds

We often tend to think about English in terms of the written language, because of its importance in our society and in our education system. However, spoken language is really much more basic to us as human beings:

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Spelling: Double consonants

If a root word ends in a consonant, adding a suffix will sometimes require that you double the base word’s final consonant. How do you know when to double the consonant?

Consider the following examples, where doubled consonants are underlined.

  • shipment
  • shipped
  • muddy
  • fitful
  • fittest
  • waiting
  • greenest
    •

Now take a look at some larger words, whose base forms have more than one syllable.

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Spelling: Spelling and word structure

Many common spelling errors occur with double consonants or vowel combinations, as in the following words:

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Spelling: Suffixes

Suffixes cause many of our common spelling mistakes. One challenge is simply to know which is correct: for example, legible or legable? In fact, −ible and −able serve the same function, and sound the same. As a matter of history, -ible entered English from Latin, while −able entered English from French, but there’s no easy rule for knowing when to use which suffix. Each word with each suffix just requires practice.

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Spelling: Suffixes and 'y'

When a word ends in y, adding a suffix will sometimes require that we change the y to an i or to an ie. How do you know when to change the y?

Look through the examples below and the rules that follow.

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