uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
How to pronounce upon in American English
uh·PAHN
Start here
Americans pronounce upon as uh-PAHN (/əˈpɑn/). Stress falls on the second syllable — keep everything else short and quick. You'll hear it in sentences like "The success of the project depends upon collaboration" or "The Miranda rights must be read to suspects upon arrest" — more examples below.
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Sound by sound
Every sound in "upon".
2 syllables, 4 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
p/p/
Press your lips together to stop the air, then release. No vocal cord vibration.
ah/ɑ/
Relax your lips and drop your jaw significantly. The tongue tip lightly touches behind the bottom front teeth and the back part of the tongue presses down a little to create more dark space in the back of the mouth.
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 "upon" in the wild.
Click any sentence to see the full breakdown — every link, every reduction, every flap-T.
"I would be happy to provide additional details upon request."
ahy wuud bee HA·pee tuh pruh·VAHYD uh·DIH·shuh·nuhl DEE·taylz uh·PAHN ruh·KWEHST
"The Miranda rights must be read to suspects upon arrest."
dhuh muh·RAN·duh RAHYTS muhst bee REHD tuh SUH·spehkts uh·PAHN uh·REHST
"The success of the project depends upon collaboration."
dhuh suhk·SEHS uhv dhuh PRAH·juhkt duh·PEHNDZ uh·PAHN kuh·la·buh·RAY·shuhn
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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 second syllable, not the others. Stretch PAHN — keep everything else short and quick.
UH·pahn→uh·PAHN
02
Pronouncing the first syllable too fully.
Don't pronounce the first syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.
UH·PAHN→uh·PAHN
Questions
Questions people ask about this.
How is "upon" stressed in American English?
Stress falls on the second syllable — say "PAHN" with a longer, fuller vowel and keep every other syllable short and quick. The respell "uh-PAHN" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why does the first syllable in "upon" reduce to "uh"?
Unstressed syllables in American English collapse toward a schwa — a lazy, neutral "uh" sound. The full vowel is what textbooks teach, but in actual American speech every unstressed vowel reduces. The respell "uh-PAHN" shows the reduced form so you can hear the casual rhythm directly.
Is the American pronunciation of "upon" 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 "uh-PAHN" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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