How to pronounce dna in American English
dee·ehn·AY
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Americans pronounce dna as dee-ehn-AY (/ˌdiˌɛnˈeɪ/). Stress falls on the third syllable — keep everything else short and quick.
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"DNA contains the genetic instructions for the development of all living things."
dee·ehn·AY kuhn·TAYNZ dhuh juh·NEH·duhk uhn·STRUHK·shuhnz fer dhuh duh·VEH·luhp·muhnt uhv AHL LIH·vuhng THIHNGZ
"The forensic team analyzed the DNA samples found at the scene."
dhuh fuh·REHN·suhk TEEM A·nuh·lahyzd dhuh dee·ehn·AY SAM·puhlz FOWND uht dhuh SEEN
"The forensic unit collected DNA samples from the suspect."
dhuh fuh·REHN·suhk YOO·nuht kuh·LEHK·tuhd dee·ehn·AY SAM·puhlz fruhm dhuh SUH·spehkt
"Genetic engineering involves modifying an organism's DNA."
juh·NEH·duhk ehn·juh·NEER·uhng uhn·VAHLVZ MAH·duh·fahy·uhng uhn OR·guh·nih·zuhmz dee·ehn·AY
"The human genome project mapped all the genes in human DNA."
dhuh HYOO·muhn JEE·nohm PRAH·jehkt MAPT AHL dhuh JEENZ ihn HYOO·muhn dee·ehn·AY
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 third syllable, not the others. Stretch AY — keep everything else short and quick.
DEE·EHN·ay→DEE·EHN·AY
Questions
Questions people ask about this.
How is "dna" stressed in American English?
Stress falls on the third syllable — say "AY" with a longer, fuller vowel and keep every other syllable short and quick. The respell "dee-ehn-AY" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Is the American pronunciation of "dna" 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 "dee-ehn-AY" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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