oh/oʊ/
Start with your mouth slightly open, then close your jaw slightly as your lips round. Shift your tongue back slightly, then stretch the back up.
How to pronounce ozone in American English
OH·zohn
Start here
Americans pronounce ozone as OH-zohn (/ˈoʊˌzoʊn/). Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "The ozone layer protects us from harmful ultraviolet rays" or "The ozone layer is healing due to global bans on certain chemicals" — more examples below.
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Sound by sound
Every sound in "ozone".
2 syllables, 4 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
z/z/
Same position as S, but add vocal cord vibration. Feel the buzz.
oh/oʊ/
Start with your mouth slightly open, then close your jaw slightly as your lips round. Shift your tongue back slightly, then stretch the back up.
n/n/
Touch the tip or front edge of your tongue to the roof of your mouth behind your teeth. Air flows through your nose.
In real conversation
Hear "ozone" in the wild.
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Watch out
Common pronunciation mistakes in American English.
The textbook way isn't wrong — it's just not how anyone actually says it.
01
Stressing the wrong syllable.
Stress falls on the first syllable, not the others. Stretch OH — keep everything else short and quick.
oh·ZOHN→OH·ZOHN
Questions
Questions people ask about this.
How is "ozone" stressed in American English?
Stress falls on the first syllable — say "OH" with a longer, fuller vowel and keep every other syllable short and quick. The respell "OH-zohn" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Is the American pronunciation of "ozone" different from British English?
American English uses different vowel shapes, a relaxed retroflex R, and connected-speech tricks like flap-T and glottal-stop T that British Received Pronunciation generally avoids. The respell "OH-zohn" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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