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Pronunciation · Minimal pairs · medium functional load

/ɔː/ vs /ɜː/ — walk vs work

In short

The rounded back /ɔː/ and the neutral central /ɜː/ separate walk/work, born/burn and warm/worm — a pair of long vowels that learners very often collapse into one. This contrast carries a MEDIUM functional load — the contrast separates a fair number of word pairs, so it is worth systematic practice once the high-load contrasts are stable.

How to hear (and make) the difference

/ɔː/ has firm lip rounding; /ɜː/ has NONE — lips completely relaxed, tongue flat in the centre. If your lips are round on 'work', it will come out as 'walk'.

Most challenging for Spanish, Portuguese, Vietnamese, Bengali, Arabic speakers.

8 minimal pairs with audio

Play each side and copy it. Then read the pairs aloud — can a listener tell which word you said?

  • walk/wɔːk/
    work/wɜːk/
  • torn/tɔːn/
    turn/tɜːn/
  • born/bɔːn/
    burn/bɜːn/
  • four/fɔː/
    fur/fɜː/
  • warm/wɔːm/
    worm/wɜːm/
  • short/ʃɔːt/
    shirt/ʃɜːt/
  • form/fɔːm/
    firm/fɜːm/
  • ward/wɔːd/
    word/wɜːd/

Test your ear

Perception comes before production: if you can't hear the contrast, you can't say it reliably. Free, unlimited, different voices each round.

Listening drill

/ɔː/ vs /ɜː/ — walk vs work

1/8

/ɔː/ has firm lip rounding; /ɜː/ has NONE — lips completely relaxed, tongue flat in the centre. If your lips are round on 'work', it will come out as 'walk'.

The contrast in sentences

Same sentence frame, different word — say both versions and make them unmistakably different.

  • I walk every morning.

    I work every morning.

  • This form looks official.

    This firm looks official.

Keep exploring

Frequently asked questions

What is the difference between walk and work?
walk /wɔːk/ uses the /ɔː/ sound while work /wɜːk/ uses /ɜː/. /ɔː/ has firm lip rounding; /ɜː/ has NONE — lips completely relaxed, tongue flat in the centre. If your lips are round on 'work', it will come out as 'walk'.
What are minimal pairs and why practise them?
Minimal pairs are word pairs that differ by exactly one sound (ship/sheep). Practising them trains your ear and mouth on the single difference that separates the words — perception research (high variability phonetic training) shows this transfers to real speaking.
Which learners find the /ɔː/ vs /ɜː/ contrast hardest?
It is most challenging for Spanish, Portuguese, Vietnamese, Bengali, Arabic speakers, whose first languages don't separate these two sounds.
Do these pairs matter for IELTS Speaking?
They help. IELTS scores intelligibility, so contrasts that change word meaning matter most — this one is worth practising once the high-priority vowel contrasts are stable.

Next step

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