How to pronounce basis in American English

IPA /ˈbeɪsəs/ Syllables 2 · bay·suhs Stress 1st syllable
BAY·suhs
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Americans pronounce basis as BAY-suhs (/ˈbeɪsəs/). Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "The theoretical framework provided the basis for our analysis".

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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 first syllable, not the others. Stretch BAY — keep everything else short and quick.

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.

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Sound by sound

Every sound in "basis".

2 syllables, 5 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.

b/b/

Press your lips together, add vocal cord vibration, then release.

Mouth position for /b/ as in BED
ay/eɪ/

Start with your jaw slightly open and the front of your tongue forward and slightly up. Glide upward, your jaw closes a little more and your tongue arches higher toward the roof of the mouth.

s/s/

Place your tongue tip near the roof of your mouth behind your top teeth. Push air through the narrow gap. No voicing.

Mouth position for /s/ as in SUN
uh/ʌ/

Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.

s/s/

Place your tongue tip near the roof of your mouth behind your top teeth. Push air through the narrow gap. No voicing.

Mouth position for /s/ as in SUN
In real conversation

Hear "basis" in the wild.

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

"The theoretical framework provided the basis for our analysis."
dhuh thee·uh·REH·tuh·kuhl FRAYM·wurk pruh·VAHY·duhd dhuh BAY·suhs fer owr uh·NA·luh·suhs
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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

Stressing the wrong syllable.

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

bay·SUHSBAY·suhs
02

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.

BAY·SUHSBAY·suhs
Questions

Questions people ask about this.

How is "basis" stressed in American English?
Stress falls on the first syllable — say "BAY" with a longer, fuller vowel and keep every other syllable short and quick. The respell "BAY-suhs" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why does the second syllable in "basis" 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 "BAY-suhs" shows the reduced form so you can hear the casual rhythm directly.
Is the American pronunciation of "basis" 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 "BAY-suhs" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.

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