How to pronounce boost in American English

IPA /bust/ Syllables 1 · boost Stress 1st syllable

BOOST

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Americans pronounce boost as BOOST (/bust/).

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Sounds

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Clarity

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Stress

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Intonation

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Fluency

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Why it sounds different

Why "boost" sounds like BOOST.

The "" at the end of "" flows directly into the vowel starting "" — the consonant migrates to the next word with no pause between. This is called the Consonant-to-Vowel Linking, what turns word-by-word reading into actual conversation. It comes out as BOOST.

In real conversation

Hear "boost" in the wild.

Click any sentence to see the full breakdown — every link, every reduction, every flap-T.

"She takes vitamins every morning to boost her immune system."

shee TAYKS VAHY·duh·muhnz EHV·ree MOR·nuhng tuh BOOST her uh·MYOON SIH·stuhm

"The government implemented stimulus measures to boost the economy."

dhuh GUH·vern·muhnt IHM·pluh·mehn·tuhd STIH·myuh·luhs MEH·zherz tuh BOOST dhee uh·KAH·nuh·mee

Questions

Questions people ask about this.

Is the American pronunciation of "boost" 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 "BOOST" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.