How to pronounce hypothesis in American English

IPA /haɪˈpɑθəsəs/ Syllables 4 · hahy·pah·thuh·suhs Stress 2nd syllable

hahy·PAH·thuh·suhs

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Americans pronounce hypothesis as hahy-PAH-thuh-suhs (/haɪˈpɑθəsəs/). The unstressed syllable reduces to a lazy schwa — almost a quick "uh" — instead of being pronounced fully. Stress falls on the second syllable — keep everything else short and quick.

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Sounds

75%

Clarity

68%

Stress

78%

Intonation

65%

Fluency

62%

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72% Noticeable accent

Common mistakes

Stressing the wrong syllable.

Stress falls on the second syllable, not the others. Stretch PAH — keep everything else short and quick.

Pronouncing the unstressed syllable too fully.

Don't pronounce the second syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.

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In real conversation

Hear "hypothesis" in the wild.

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"Our hypothesis was supported by the empirical data we collected."

OW·er hahy·PAH·thuh·suhs wuhz suh·POR·tuhd bahy dhee ehm·PEER·uh·kuhl DAY·duh wee kuh·LEHK·tuhd

"The hypothesis was tested through a series of rigorous experiments."

dhuh hahy·PAH·thuh·suhs wuhz TEH·stuhd throo uh SEER·eez uhv RIH·ger·uhs uhk·SPAIR·uh·muhnts

Watch out

Common pronunciation mistakes in American English.

The textbook way isn't wrong — it's just not how anyone actually says it.

Stressing the wrong syllable.

Stress falls on the second syllable, not the others. Stretch PAH — keep everything else short and quick.

HAHY·pah·THUH·SUHS→hahy·PAH·thuh·suhs

Pronouncing the unstressed syllable too fully.

Don't pronounce the second syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.

hahy·PAH·THUH·suhs→hahy·PAH·thuh·suhs

Questions

Questions people ask about this.

How is "hypothesis" stressed in American English?

Stress falls on the second syllable — say "PAH" with a longer, fuller vowel and keep every other syllable short and quick. The respell "hahy-PAH-thuh-suhs" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.

Why does the third syllable in "hypothesis" 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 "hahy-PAH-thuh-suhs" shows the reduced form so you can hear the casual rhythm directly.

Is the American pronunciation of "hypothesis" 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 "hahy-PAH-thuh-suhs" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.

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Common mistakes

Stressing the wrong syllable.

Pronouncing the unstressed syllable too fully.

Hear "hypothesis" in the wild.

Words that work the same way.

Common pronunciation mistakes in American English.

Stressing the wrong syllable.

Pronouncing the unstressed syllable too fully.

Questions people ask about this.

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