英語で「eightieth」はどう発音する？
ˈeɪtiəθ
AY·tee·əth
第1強勢： AY
実際の動画クリップの中でネイティブが文脈に合わせて「eightieth」を発音するのを聴く
Linguistic Pronunciation Masterclass: “eightieth”
Phonetic mechanics, syllable architecture, and conversational cadence
Syllable Architecture & Stress Distribution
AY
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 ("AY"). 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.
Connected Speech & Natural Conversational Flow
When "eightieth" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "eightieth is" sounds like "eightieth-iz").
Maintain the stress-timed rhythm of English: compress unstressed syllables rapidly so the beat of "eightieth" aligns naturally with adjacent words.
Authentic Spoken Quotes from Native Video Context
“That is probably the seventieth or eightieth ultimate ability we created for Bastion.”— WIREDWatch clip
“eightieth energy is not an adiabatic invariant entropy is an adiabatic”— StanfordWatch clip
“It symbolizes that I live to my eightieth year.”— TEDx TalksWatch clip
“This is my eightieth year, and I know that my time is brief.”— TEDWatch clip
“In 1790, a bunch of different troupes came to Beijing to celebrate the eightieth birthday of Emperor Qian Long.”— Native SpeakerWatch clip
“Now, little did I know, yes I was the eightieth CEO in ten years.”— Native SpeakerWatch clip
「eightieth」のスピーキング練習
ネイティブの発音を聞き、マイクに向かってセンテンスを復唱すると、リアルタイムで単語ごとの発音精度スコアが表示されます。
That is probably the seventieth or eightieth ultimate ability we created for Bastion.
文脈で聴く: “eightieth”
8 件のクリップThe 英語 word “eightieth” is transcribed in the International Phonetic Alphabet (IPA) as ˈeɪtiəθ (phonetic respelling: AY-tee-əth). Phonologically, it consists of 3 syllables (AY · tee · əth), with primary lexical stress placed on the 1st (initial) syllable (AY). Grammatically, “eightieth” functions as a adjective, noun. SayItVid indexes 8 authentic 英語 video clips demonstrating how native speakers articulate “eightieth” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from WIRED, Stanford, TEDx Talks.
Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)
- 🇺🇸 USWIREDClip #1 · @6:17
“which is that it transforms into a tank. That is probably the seventieth or eightieth ultimate ability we created for Bastion. or eightieth ultimate ability we created for Bastion.”
- 🇺🇸 USStanfordClip #2 · @21:51
“this is this is really central that energy is an ATI sorry entropy is an eightieth energy is not an adiabatic invariant entropy is an adiabatic invariant and the ultimate reason for it is information conservation without it”
- 🇺🇸 USTEDx TalksClip #3 · @2:40
“It has all eighty columns. It symbolizes that I live to my eightieth year. It is average. A lot of people will be very happy”
- 🇺🇸 USTEDClip #4 · @4:05
“and see what is going to be. But I won't, because I'm 80 years old. This is my eightieth year, and I know that my time is brief. because I'm 80 years old. This is my eightieth year,”
- 🇺🇸 USClip #5 · @6:34
“though none predominated in the way the zaju and chuangi had. In 1790, a bunch of different troupes came to Beijing to celebrate the eightieth birthday of Emperor Qian Long. of Emperor Qian Long.”
意味と定義: “eightieth”
- The ordinal form of the number eighty.
- The person or thing in the eightieth position.
- One of eighty equal parts of a whole.
動画内の例文 (2)
- “That is probably the seventieth or eightieth ultimate ability we created for Bastion.”
- “eightieth energy is not an adiabatic invariant entropy is an adiabatic”
よく使われるフレーズ・コロケーション
発音: “eightieth”
- Pronunciation:
- AY-tee-əth
- 音節:
- AY · tee · əth
- Written Hyphenation:
- eigh · ti · eth
- 第1強勢：
- AY
- IPA:
- ˈeɪtiəθ
- 文脈で聴く
- eightieth
押韻・ライミングワード： “eightieth”
-eɪtiəθ発音が全く同じ単語（同音異義語）
固有の発音「eightieth」 (⁄ˈeɪtiəθ⁄) には一般的な語彙において同音異義語がありません。
「eightieth」に関するよくある質問
「eightieth」の英語の発音は？
「eightieth」の発音記号は ⁄ˈeɪtiəθ⁄ (AY-tee-əth) です。上のネイティブ動画クリップを再生して、実際の会話におけるリアルな発音を聞いてみましょう。
「eightieth」の音節（シラブル）数はいくつですか？
「eightieth」には 3 つの音節があります：AY · tee · əth。
「eightieth」のアクセント（強勢）はどこですか？
「eightieth」の第1強勢（主アクセント）は「AY」にあります。動画内の強勢の置かれ方に注目して聴いてみてください。
「eightieth」の意味は何ですか？
The ordinal form of the number eighty.
「eightieth」が実際に使われている文を聞くには？
このページには、字幕付きの動画例文が 8 件収録されています。「前へ / 次へ」（または矢印キー ← / →）を使って発音される瞬間をピンポイントで再生できます。
What is the most common pronunciation mistake when saying “eightieth”?
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.