Did you know that the English language has at least 15 vowels? The pure vowels in English, technically known as monophthongs (from the Greek mónos “single” and phthóngos “sound”) are:
/iː/, /ı/, /ε/, /æ/, /ɜ:/, /ə/, /Λ/, /u:/, /ɔ:/, /ɑ:/, /ʊ/, /ɒ/, /a/, /oː/, /e/
These strange-looking symbols which come from the International Phonetic Alphabet (IPA) are more precise than the A, E, I, O and U (and sometimes Y and W) which we use in written English. In fact the five written vowels themselves can be transcribed (in their “long” form) with IPA symbols as:
/eɪ/, /iː/, /aɪ/, /oʊ/, and /ju:/
As can be seen, the letter E is the only real pure vowel (the two dots after the “i” mean that it is long); the others are combinations of multiple sounds. All syllables and words in English- or any other language- are built up of combinations of vowels with consonants and with other vowels. This makes a working knowledge of phonetic symbols a great boon for two categories of people- those who are learning a foreign language and those who are teaching their language to foreigners.
Imagine teaching the word “stood” to a Spanish-only speaker. You are trying to get him to say /stʊd/ but what comes out is /stu:d/- which usually corresponds to the written word “stewed.” The smart ESL teacher will realize that her student is having a problem because the Spanish language only has 5 monophthongs:
/a/, /e/, /i/, /o/, /u/
The /ʊ/ – a sound which we use in words like “good”, “should”, and “hook”- is just not part of a Spanish speaker’s repertoire. Likewise, an English-only speaker learning Spanish will find difficulty in pronouncing the Spanish “o”, which we usually read as a diphthong, a combination of two monophthongs. In the United States “o” is generally /oʊ/ while in England it is /əʊ/. We might consider ourselves fortunate if we’re from Minnesota, where “o” is said in the same way as it is in Spanish; the state that is /mɪnɨˈsoʊtə/ for most of us is /mɪnɨˈsotə/ for the natives.
The Italian language is phonetically very similar to Spanish; however it has two extra vowels- /ε/ and /ɔ/- which we refer to as “short E” and “short O”. These vowels give the Italian-speaker a significant aid in learning English as they are used in many words, such as bed (/bεd/) and cot (/cɔt/). The Italian-speaker from Naples has an additional advantage, as her dialect contains the vowel /ə/ as well. This vowel, also known as the “schwa”, is the most common vowel sound of all in the English language. It is generally used in unstressed syllables, such as in the second syllable of “sofa” /`soʊfə/ or in the definite article “the” whenever it appears before a consonant.
English speakers find that the tables are turned when they are learning a vowel-rich language such as German, which has 17 pure vowel sounds, including the distinctive /ø/ sound, which appears in such common expressions as dankeschön (thank you very much).
Being aware that the language you are studying has not only different grammar and vocabulary, but a different set of sounds as well can help accelerate the learning process. Foreign language teachers and students are only doing themselves a favor by getting to know the symbols of the IPA.