ten
/tĕn/
noun
  1. The cardinal number equal to 9 + 1.
  2. The tenth in a set or sequence.
  3. Something having ten parts, units, or members.
from The American Heritage® Dictionary of the English Language, 5th Edition. More at Wordnik

I don't hear "teen". In any case, vowel sounds are often distorted somewhat in singing: see this paper for some detailed analysis. To me, it seems that the word is lengthened somewhat, which could contribute to the use of an altered vowel quality.

There is a known sound change that could theoretically be relevant here (the "pin-pen merger"; usually, speakers who use the same vowel sound in both words use a vowel closer to the vowel that unmerged speakers use in "pin"), but I don't think the pronunciation of this particular word is enough evidence to show that the speaker has this merger. In any case, the pen-pin merged vowel is still distinct from the /i/ vowel that is found in words like "teen".

Answer from herisson on Stack Exchange
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How to Pronounce
howtopronounce.com › home › ten
Ten Pronunciation
April 16, 2021 - How to say ten in English? Pronunciation of ten with 24 audio pronunciations, 5 synonyms, 1 meaning, 15 translations, 58 sentences and more for ten.
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Cambridge Dictionary
dictionary.cambridge.org › us › pronunciation › english › ten
How to pronounce TEN in English
1 month ago - How to pronounce TEN. How to say TEN. Listen to the audio pronunciation in the Cambridge English Dictionary. Learn more.
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ELSA
elsaspeak.com › en › learn-english › how-to-pronounce › ten
How to Pronounce TEN in American English | ELSA Speak
Practice pronunciation of the word ten with ELSA advanced technology and say ten like Americans.
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AccentHero
accenthero.com › app › pronunciation-practice › english › american › ten
How to pronounce ten: examples and online exercises
press buttons with phonetic symbols to learn how to precisely pronounce each sound of ten ... press the "test" button to check how closely you can replicate the pitch of a native speaker in your pronunciation of ten
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Wiktionary
en.wiktionary.org › wiki › ten
ten - Wiktionary, the free dictionary
The number occurring after nine and before eleven, represented in Arabic numerals (base ten) as 10 and in Roman numerals as X.
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Merriam-Webster
merriam-webster.com › dictionary › ten
TEN Definition & Meaning - Merriam-Webster
6 days ago - Middle English, going back to Old English tīen (West Saxon), tēn, going back to Germanic *tehun (whence also Old Frisian tiān, tiēn "ten," Old Saxon tehan, Old High German zehan, Old Norse tíu, Gothic taihun), going back to Indo-European *deḱm̥, whence also Old Irish deich "ten," Welsh deg, Latin decem, Old Church Slavic desętĭ, Lithuanian dẽšimt, Albanian dhjetë, Greek déka, Armenian tasn, Tocharian A śäk, Tocharian B śak, Avestan dasa, Sanskrit daśa
Find elsewhere
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Forvo
forvo.com › word › ten
How to pronounce ten in English - Definition of ten in English
Pronunciation by nathesnatalia (Female from Poland) Ten zegarek (samochód) pochodzi ci (= will function correctly) ze dwa lata i wysiądzie (= will quit working).
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Cambridge Dictionary
dictionary.cambridge.org › us › dictionary › english › ten
TEN | definition in the Cambridge English Dictionary
2 weeks ago - (Definition of ten from the Cambridge Academic Content Dictionary © Cambridge University Press) What is the pronunciation of ten? in Chinese (Traditional) (數字)10… · See more · in Chinese (Simplified) (数字)10… · See more · in Spanish ·
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Quora
quora.com › In-what-part-of-America-do-people-pronounce-tin-and-ten-the-same-Is-this-a-new-thing
In what part of America do people pronounce “tin” and “ten” the same? Is this a new thing? - Quora
Answer (1 of 7): It’s called the “pin-pen merger.” Here is the area: The vowels /ɪ/ like “pin” and /ɛ/ like “pen” are merged into the same sound (closer to the /ɪ/ sound) — but only when they occur before nasal consonant sounds (m, n, ng). As you can see on the map, it occurs all over the South...
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Woodward English
woodwardenglish.com › home › numbers › numbers 1-100 in english
Numbers 1-100 in English | Woodward English
January 22, 2023 - Listen to the pronunciation of the numbers from 1 to 100. The numbers from 1 to 100 in English are: 1 – one · 2 – two · 3 – three · 4 – four · 5 – five · 6 – six · 7 – seven · 8 – eight · 9 – nine · 10 – ten · 11 – eleven · 12 – twelve ·
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Reddit
reddit.com › r/stupidquestions › is the number ten pronounced "ten" or "tin"?
r/stupidquestions on Reddit: Is the number ten pronounced "ten" or "tin"?
July 31, 2022 -

I just argued with my friend for the second time about how the number ten is pronounced. My entire life I've been pronouncing it how it sounds with emphasis on the "e" in the middle. He swears to me that everybody else says "tin" despite the spelling. We've listened to audio and he swears it's saying "tin" but I swear I'm hearing "ten". It might be worth noting that he grew up in Nashville TN and I grew up in Connecticut. If he's messing with me he's doing a really good job but I really think he's serious. Am I insane or is he? How do YOU pronounce and also hear the word "ten"?

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Encyclopedia Britannica
britannica.com › dictionary › eb › audio
How to Pronounce Ten - (Audio) | Britannica Dictionary
Meta description: Hear the pronunciation of Ten in American English, spoken by real native speakers. From North America's leading language experts, Britannica Dictionary
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YouTube
youtube.com › tarle speech & language services - english pronunciation
How to Pronounce TEN and THEN - American English Pronunciation Lesson - YouTube
Learn how to pronounce the English words TEN and THEN / tɛn ðɛn/ correctly with this American English pronunciation lesson. Jennifer Tarle from Tarle Speech ...
Published   July 31, 2017
Views   4K
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Deep English
deepenglish.com › home › how to pronounce
How to Pronounce Ten
April 11, 2025 - The English word "ten" comes from the Old English "tīen," which traces back to the Proto-Germanic *tehun and ultimately the Proto-Indo-European root *déḱm̥, showing its deep history across many languages.
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Bab.la
en.bab.la › pronunciation › english › ten
What is the pronunciation of 'ten' in English?
Learn how to say 'ten' in English with audio and example in sentences
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Quora
quora.com › When-you-personally-say-tin-and-ten-do-they-sound-the-same
When you personally say 'tin' and 'ten', do they sound the same? - Quora
Answer (1 of 72): Thanks for the A2A! I want to start by vigorously rejecting that the singular “correct” pronunciation is /tɛn/ for ten and /tɪn/ for tin. This is something that some of the answers here suggest, and it is false. There is no such thing as a singular correct pronunciation ...
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Promova
promova.com › how-to-pronounce › ten
How to Pronounce ten in English | Promova
If you’re learning American English, stick to it and try not to confuse yourself with British pronunciation. ... Say ten in the pronunciation tool as many times as it takes before you get it right.