uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
How to pronounce infections in American English
uhn·FEHK·shuhnz
Start here
Americans pronounce infections as uhn-FEHK-shuhnz (/ənˈfɛkʃənz/). Stress falls on the second syllable — keep everything else short and quick. You'll hear it in sentences like "Antibiotics are used to treat bacterial infections effectively" or "Antibiotics are ineffective against viral infections like the cold" — more examples below.
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Sound by sound
Every sound in "infections".
3 syllables, 9 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
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.
f/f/
Lift your bottom lip to touch the very bottom of your top front teeth. Blow air through this contact point without voicing.
eh/ɛ/
Drop your jaw moderately. Touch the tongue tip behind the bottom front teeth and lift the mid-front part slightly toward the roof.
k/k/
Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.
sh/ʃ/
Flare your lips and lift the mid-front tongue close to the roof of your mouth. Blow air through without voicing.
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.
z/z/
Same position as S, but add vocal cord vibration. Feel the buzz.
In real conversation
Hear "infections" in the wild.
Click any sentence to see the full breakdown — every link, every reduction, every flap-T.
"Antibiotics are ineffective against viral infections like the cold."
an·tee·bahy·AH·tuhks er ih·nuh·FEHK·tuhv uh·GEHNST VAHY·ruhl uhn·FEHK·shuhnz LAHYK dhuh KOHLD
"Antibiotics are used to treat bacterial infections effectively."
an·tee·bahy·AH·tuhks er YOOZD tuh TREET bak·TEER·ee·uhl uhn·FEHK·shuhnz uh·FEHK·tuhv·lee
"The discovery of penicillin revolutionized the treatment of infections."
dhuh dih·SKUH·vuh·ree uhv peh·nuh·SIH·luhn reh·vuh·LOO·shuh·nahyzd dhuh TREET·muhnt uhv uhn·FEHK·shuhnz
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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
Releasing the final consonant with a puff of air.
In "infections", the "k" is not released — the articulators get into position but hold without the burst of air. Air stops but there's no release burst — the articulators hold position.
infections→uhn·FEHK·shuhnz
02
Inserting a vowel before the syllabic consonant.
In "infections", 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.
infections→uhn·FEHK·shuhnz
03
Stressing the wrong syllable.
Stress falls on the second syllable, not the others. Stretch FEHK — keep everything else short and quick.
UHN·fehk·SHUHNZ→uhn·FEHK·shuhnz
04
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.
UHN·FEHK·shuhnz→uhn·FEHK·shuhnz
Questions
Questions people ask about this.
How is "infections" stressed in American English?
Stress falls on the second syllable — say "FEHK" with a longer, fuller vowel and keep every other syllable short and quick. The respell "uhn-FEHK-shuhnz" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why does the first syllable in "infections" 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 "uhn-FEHK-shuhnz" shows the reduced form so you can hear the casual rhythm directly.
Is the American pronunciation of "infections" 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 "uhn-FEHK-shuhnz" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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