f/f/
Lift your bottom lip to touch the very bottom of your top front teeth. Blow air through this contact point without voicing.
How to pronounce fill in American English
FIHL
Start here
Americans pronounce fill as FIHL (/fɪl/). The L in "fill" is a dark L — the back of the tongue rises toward the soft palate, adding a small "uh" quality before the L. This is called the Dark L vs Light L, and it's why Americans sound more relaxed than the textbook. It comes out as FIHL. You'll hear it in sentences like "Fill the bin" or "Fill the bowl" — more examples below.
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Sound by sound
Every sound in "fill".
1 syllable, 3 sounds. Explore each sound's mouth shape and how it's made.
ih/ɪ/
Drop your jaw slightly with relaxed lips. Touch the tongue tip behind the bottom front teeth and arch the top-front toward the roof.
l/l/
DarkKeep the tongue tip down and pull the back of the tongue up toward the throat. The 'dark' sound comes from the back.
In real conversation
Hear "fill" in the wild.
Click any sentence to see the full breakdown — every link, every reduction, every flap-T.
"Can you fill this sheet out for me?"
kan yoo FIHL dhihs SHEET OWT fer mee
"Fill the bin."
FIHL dhuh BIHN
"Fill the bowl."
FIHL dhuh BOHL
"I need to fill up my water bottle."
ahy NEED tuh FIHL UHP mahy WAH·der BAH·duhl
"I need to fill up the gas tank before the road trip."
ahy NEED tuh FIHL UHP dhuh GAS TANGK buh·FOR dhuh ROHD TRIHP
"Please fill out this form completely."
PLEEZ FIHL OWT dhihs FORM kuhm·PLEET·lee
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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
Treating every L the same.
The L in "fill" is a dark L — the back of the tongue rises toward the soft palate, adding a small "uh" quality before the L. Dark L adds a small schwa-like "uh" before the L. The back of the tongue lifts toward the soft palate.
fill→FIHL
Questions
Questions people ask about this.
Is the American pronunciation of "fill" 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 "FIHL" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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