How to pronounce "ninetieth" in English
ˈnaɪntiəθ
NYN·tee·əth
Primary stress: NYN
Hear native speakers say ninetieth in context across real video clips
Linguistic Pronunciation Masterclass: “ninetieth”
Phonetic mechanics, syllable architecture, and conversational cadence
Syllable Architecture & Stress Distribution
NYN
Gliding diphthong with sustained vocal resonance.
tee
Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.
əth
Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.
Primary emphasis falls on the first syllable ("NYN"). Raise your pitch and sustain the vowel length on this syllable while relaxing the surrounding syllables.
Common Pronunciation Traps & Learner Mistakes
The Trap: Many learners substitute "th" with "s", "z", "t", or "d".
How Native Speakers Say It: Place the flat blade of your tongue lightly between your upper and lower incisors. Blow air gently without vocal chord vibration to produce the unvoiced ⁄θ⁄ sound.
The Trap: Pronouncing a hard, aspirated [tʰ] in casual conversation can sound overly formal in North America.
How Native Speakers Say It: In American English, a single "t" between vowels quickly taps against the alveolar ridge like a soft "d" ([ɾ]). In British English, maintain a crisp aspirated [tʰ].
Connected Speech & Natural Conversational Flow
When "ninetieth" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "ninetieth is" sounds like "ninetieth-iz").
Maintain the stress-timed rhythm of English: compress unstressed syllables rapidly so the beat of "ninetieth" aligns naturally with adjacent words.
Authentic Spoken Quotes from Native Video Context
“entropy of 10 to the ninetieth of that order of magnitude in photons in the”— StanfordWatch clip
Practice Speaking “ninetieth”
Listen to native pronunciation, record yourself repeating the sentence into your microphone, and receive real-time word-by-word accuracy scoring.
entropy of 10 to the ninetieth of that order of magnitude in photons in the
Hear it in context: “ninetieth”
1 clipThe English word “ninetieth” is transcribed in the International Phonetic Alphabet (IPA) as ˈnaɪntiəθ (phonetic respelling: NYN-tee-əth). Phonologically, it consists of 3 syllables (NYN · tee · əth), with primary lexical stress placed on the 1st (initial) syllable (NYN). Grammatically, “ninetieth” functions as a adjective, noun. SayItVid indexes 1 authentic English video clip demonstrating how native speakers articulate “ninetieth” in natural connected speech across American (US: 1 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from Stanford.
Spoken Video Transcripts & Contextual Quotes (1 Verified Clips)
- 🇺🇸 USStanfordClip #1 · @105:11
“the entropy is dominated by black holes yeah there's something like about an entropy of 10 to the ninetieth of that order of magnitude in photons in the observable universe but there are enough black holes at the Centers of galaxies”
Definition & Meaning: “ninetieth”
- The ordinal form of the number ninety.
- The person or thing in the ninetieth position.
- One of ninety equal parts of a whole.
Example Sentences (1)
- “entropy of 10 to the ninetieth of that order of magnitude in photons in the”
Pronounce: “ninetieth”
- Pronunciation:
- NYN-tee-əth
- Syllables:
- NYN · tee · əth
- Written Hyphenation:
- nine · ti · eth
- Primary stress:
- NYN
- IPA:
- ˈnaɪntiəθ
- Hear it in context
- ninetieth
Words that Rhyme with “ninetieth”
-aɪntiəθWords that Sound Identical (Homophones)
Unique Sound"ninetieth" (⁄ˈnaɪntiəθ⁄) has no true homophones in standard English — there are no other words with identical pronunciation. Unlike sound-alike pairs like there / their or peace / piece, "ninetieth" has a completely distinct phonetic identity.
Frequently asked questions about ninetieth
How do you pronounce “ninetieth”?
“ninetieth” is pronounced ⁄ˈnaɪntiəθ⁄ (NYN-tee-əth). Listen to the native-speaker clips above to hear it in real conversation.
How many syllables are in “ninetieth”?
“ninetieth” has 3 syllables: NYN · tee · əth.
Where is the stress in “ninetieth”?
The primary stress in “ninetieth” is on “NYN”. Listen for that stressed syllable in the clips above.
What does “ninetieth” mean?
The ordinal form of the number ninety.
How can I hear “ninetieth” used in real sentences?
This page has 1 real-world video example of “ninetieth” with synchronized subtitles. Use Previous / Next (or ← / → keys) to hear each one at the exact moment it is spoken.
What is the most common pronunciation mistake when saying “ninetieth”?
Many learners substitute "th" with "s", "z", "t", or "d". Place the flat blade of your tongue lightly between your upper and lower incisors. Blow air gently without vocal chord vibration to produce the unvoiced ⁄θ⁄ sound.