chock vs chalk: hear and say the difference
chock and chalk are identical except for one sound: chock has the short o, /ɒ/, and chalk has the aw vowel, /ɔː/. Short O is quick with the jaw low and only a little rounding; AW is long, with the lips pushed firmly forward and the tongue a step higher.
The two words
The difference
What actually changes
Short O is quick with the jaw low and only a little rounding; AW is long, with the lips pushed firmly forward and the tongue a step higher.Accent note
Most American accents have merged these two, so 'cot' and 'caught' are the same word there. The contrast is alive in British, Irish and many other accents — and worth learning either way, because it is what tells 'stock' from 'stalk' in most of the English-speaking world.chock — /ɒ/
- Lips
- Slightly rounded.
- Tongue
- Low and back.
- Jaw
- Open, a little less than for AH.
chalk — /ɔː/
- Lips
- Clearly rounded and pushed forward.
- Tongue
- Back, at mid-low height.
- Jaw
- Open, but less than for AH.
Each word in a sentence
chock
Put a chock under the wheel.
chalk
Write it on the board in chalk.
Why this pair is hard
Spanish, Italian, Japanese and Turkish have a single mid o, so both English vowels land on it. Arabic has no short o at all in most varieties. Hindi and Urdu have a vowel close to AW, so that side is secure and the short one needs the jaw dropped.
Straight answers
What is the difference between "chock" and "chalk"?
One sound. chock is /tʃɒk/ and chalk is /tʃɔːk/ — everything else in the two words is identical, so that single contrast carries the whole meaning. Short O is quick with the jaw low and only a little rounding; AW is long, with the lips pushed firmly forward and the tongue a step higher.
Why do I say "chock" and "chalk" the same way?
Spanish, Italian, Japanese and Turkish have a single mid o, so both English vowels land on it. Arabic has no short o at all in most varieties. Hindi and Urdu have a vowel close to AW, so that side is secure and the short one needs the jaw dropped.
Should I train my ear or my mouth first?
Your ear. If you cannot reliably hear which word was said, your mouth has no target to aim at, and drilling produces a sound you cannot check. Run the listening test on this page until you are scoring four or five out of five, then record the pair.
Do all native speakers make this distinction?
Most American accents have merged these two, so 'cot' and 'caught' are the same word there. The contrast is alive in British, Irish and many other accents — and worth learning either way, because it is what tells 'stock' from 'stalk' in most of the English-speaking world.
Say "chock" and "chalk" and see which one you said
One take covers both words: reference mode aligns each sound against its target, so the contrast comes back scored on both sides. Free, private, in your browser.