The tiny sound that makes your English clearer

The schwa: small sound, big impact.

Trees in Devon, England

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Listen to this article · 3:17IPA (発音記号)

The tiny sound that makes your English clearer.

The schwa: small sound, big impact.

Have you ever noticed that the vowels we see on the page don't always sound the way they're spelt? In English, an 'a' in about or an 'o' in consume often isn't pronounced as a full, clear vowel at all, but as a weak 'uh' you produce in the centre of your mouth.

Linguists using the International Phonetic Alphabet (IPA) write it as an upside-down 'e', and they call it 'schwa' /ə/. It is - unexpectedly - the most common vowel sound in English.¹

And it's everywhere in English once you start listening for it.

So what's going on here? And why is this disappearing vowel actually a good thing?

One. Schwa lightens unstressed syllables

In English, your mouth doesn't work equally hard on every vowel. Unstressed syllables often reduce into schwa /ə/ - a neutral sound made in the middle of the mouth.² This makes the rhythm of long words easier to pronounce. In banana /bəˈnɑːnə/, the mouth muscles save their effort for the stressed syllable in the middle. You can see the schwa representing the unstressed vowel at the end of the word.

Two. Schwa reveals the rhythm of English

English is a stress-timed language: some syllables are strong and others are more feeble.³ Schwa signals this enfeeblement. Once learners notice it, they begin to hear the natural music of English - which syllables carry stress with a full vowel, and which fade into the background with a weakened one. Here are two advanced examples that highlight the way English rhythm depends on weakened vowels: metaphorical /ˌmɛtəˈfɒrɪkəl/ and (a favourite of mine) anthropomorphism /ˌanθrəpəˈmɔːfɪzəm/. Read and listen to the words. Look at where schwas sit within them.

Three. Schwa helps with listening

Many learners complain that native speakers 'swallow' sounds. But often it's schwa, not swallowing. The word 'to', for instance, is /tuː/ in isolation, but becomes /tə/ in connected speech: 'I'm going to the shop'.⁴

This is the kind of detail I love to share at 'Pronunciation with Ellie' - the small things that make English easier to follow once you know what to listen for.

Once you expect schwa, English speech suddenly makes much more sense.

So rather than being a nuisance, schwa is the little trick that makes English faster to speak, easier to understand and more rhythmic to listen to.

Once you start noticing schwa, you'll recognise it everywhere - in everyday conversations and even in your own speech. That upside-down 'e' is far from an esoteric symbol on the IPA chart: it's the most common vowel in English, and the clearest signal that a syllable has lost its stress.

I'd love to hear your thoughts. Have you found yourself tripping over schwa when you first encountered it? Or did you only notice it once you started listening more carefully?

Subscribers can share their experiences in the comments below - and I'll reply to each one.

Schwa is just one of many quirks that make English pronunciation both challenging and fascinating.

Next steps

If you'd like to know what in your own speech is making your listener work harder, my Written Diagnostic Report is the place to start. You send me two short recordings, and I write up the three patterns creating the most friction - and what to work on first.

And if you'd like the next article, you can sign up below.

1. Schwa is the most frequent vowel in English. In a study that counted the sounds of spoken British English, it made up about 11 per cent of all sounds, more than any other sound. Roach, P. (2009). English Phonetics and Phonology: A Practical Course (4th ed.). Cambridge University Press, chapter 9, "Strong and weak syllables"; Fry, D. B. (1947), reported in Crystal, D. (1995). The Cambridge Encyclopedia of the English Language. Cambridge University Press. ↩
2. Unstressed syllables very often have schwa. Roach, P. (2009). English Phonetics and Phonology: A Practical Course (4th ed.). Cambridge University Press, chapter 9, "Strong and weak syllables". ↩
3. English is often called "stress-timed": stressed syllables are said to come at regular times. Measurements show the gaps between them are not really equal. But English does have the strong and weak syllables and weak vowels that are typical of stress-timed languages. Dauer, R. M. (1983). Stress-timing and syllable-timing reanalyzed. Journal of Phonetics, 11(1), 51-62. doi:10.1016/S0095-4470(19)30776-4; Ramus, F., Nespor, M. & Mehler, J. (1999). Correlates of linguistic rhythm in the speech signal. Cognition, 73(3), 265-292. doi:10.1016/S0010-0277(99)00058-X. ↩
4. "To" has a strong form, /tuː/, and a weak form, /tə/. The weak form is used before a consonant sound. Roach, P. (2009). English Phonetics and Phonology: A Practical Course (4th ed.). Cambridge University Press, chapter 12, "Weak forms". ↩

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