sh/ʃ/
Flare your lips and lift the mid-front tongue close to the roof of your mouth. Blow air through without voicing.
How to pronounce sharpen in American English
SHAR·puhn
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Americans pronounce sharpen as SHAR-puhn (/ˈʃɑrpən/). Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "He sharpen his skates before stepping onto the ice".
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Sound by sound
Every sound in "sharpen".
2 syllables, 5 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
ar/ɑr/
Open wide for the 'ah' vowel. Lift the tongue back and up while flaring the lips for the 'r'.
p/p/
Press your lips together to stop the air, then release. No vocal cord vibration.
uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
n/n/
SyllabicThe schwa before N disappears — N becomes the vowel of the syllable. Go straight from the previous consonant to N.
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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
Inserting a vowel before the syllabic consonant.
In "sharpen", the short unstressed vowel before "n" disappears — the schwa is absorbed and the "n" becomes the syllable nucleus on its own. Schwa is absorbed — consonant becomes the syllable nucleus.
sharpen→SHAR·puhn
02
Stressing the wrong syllable.
Stress falls on the first syllable, not the others. Stretch SHAR — keep everything else short and quick.
shar·PUHN→SHAR·puhn
03
Pronouncing the unstressed 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.
SHAR·PUHN→SHAR·puhn
04
Pronouncing the "R" too clearly.
Americans use a relaxed retroflex R — the tongue curls back rather than rolling. The R is one continuous sound with the vowel before it, not two separate sounds.
… (no R)→… r (curl the tongue)
Questions
Questions people ask about this.
How is "sharpen" stressed in American English?
Stress falls on the first syllable — say "SHAR" with a longer, fuller vowel and keep every other syllable short and quick. The respell "SHAR-puhn" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why does the second syllable in "sharpen" 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 "SHAR-puhn" shows the reduced form so you can hear the casual rhythm directly.
How do I pronounce the R in "sharpen"?
Americans use a relaxed retroflex R: the tongue curls back rather than rolling, and the R is one continuous sound with the vowel before it — not two separate sounds. Don't try to pronounce a separate vowel followed by a separate R. Treat them as a single shape.
Is the American pronunciation of "sharpen" 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 "SHAR-puhn" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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