英語で「briefcases」はどう発音する？
ˈbriːfˌkeɪsɪz
BREEF·kay·siz
第1強勢： BREEF
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「briefcases」を発音するのを聴く
Linguistic Pronunciation Masterclass: “briefcases”
Phonetic mechanics, syllable architecture, and conversational cadence
Syllable Architecture & Stress Distribution
BREEF
Gliding diphthong with sustained vocal resonance.
kay
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
siz
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
Primary emphasis falls on the first syllable ("BREEF"). Raise your pitch and sustain the vowel length on this syllable while relaxing the surrounding syllables.
Common Pronunciation Traps & Learner Mistakes
The Trap: Avoid pronouncing every vowel with full acoustic weight. Non-native speakers often over-enunciate unstressed vowels.
How Native Speakers Say It: Only give full vowel clarity to the primary stressed syllable. Relax all unstressed vowels into a neutral, low-energy schwa (⁄ə⁄).
Connected Speech & Natural Conversational Flow
When "briefcases" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "briefcases is" sounds like "briefcases-iz").
Maintain the stress-timed rhythm of English: compress unstressed syllables rapidly so the beat of "briefcases" aligns naturally with adjacent words.
Authentic Spoken Quotes from Native Video Context
“The other, you switch briefcases with the person next to you, and so they shoot her instead of shooting you.”— YaleCoursesWatch clip
“people in their important looking suits with their important looking briefcases going back and forth uh to the meetings”— TEDx TalksWatch clip
“don't automatically look cartoonish okay we're going to put people in there with suspicious briefcases who otherwise look like a commuter and so on and so on this”— StanfordWatch clip
“means we need 600, 00 cash two identical briefcases a fiala cipher machine a hot air balloon Cadbury Cream Eggs half a bald eagle and a fake”— WIREDWatch clip
“We found briefcases, pillows.”— MIT OpenCourseWareWatch clip
“Safes and briefcases stuffed with cash seized as part of an alleged hund00 million bribery scheme.”— Native SpeakerWatch clip
「briefcases」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。
The other, you switch briefcases with the person next to you, and so they shoot her instead of shooting you.
文脈で聴く: “briefcases”
35 件のクリップThe 英語 word “briefcases” is transcribed in the International Phonetic Alphabet (IPA) as ˈbriːfˌkeɪsɪz (phonetic respelling: BREEF-kay-siz). Phonologically, it consists of 3 syllables (BREEF · kay · siz), with primary lexical stress placed on the 1st (initial) syllable (BREEF). Grammatically, “briefcases” functions as a noun. SayItVid indexes 35 authentic 英語 video clips demonstrating how native speakers articulate “briefcases” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from YaleCourses, TEDx Talks, Stanford.
Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)
- 🇺🇸 USYaleCoursesClip #1 · @26:25
“to you, the next one in line. The other, you switch briefcases with the person next to you, and so they shoot her instead of shooting you. next to you, and so they shoot her instead of shooting you.”
- 🇺🇸 USTEDx TalksClip #2 · @7:56
“and I would see all these business people in their important looking suits with their important looking briefcases going back and forth uh to the meetings with their important looking briefcases”
- 🇺🇸 USStanfordClip #3 · @34:15
“being able to put insert video bad guys into those video feeds that don't Auto don't automatically look cartoonish okay we're going to put people in there with suspicious briefcases who otherwise look like a commuter and so on and so on this suspicious briefcases who otherwise look like a commuter and so on and so on this”
- 🇺🇸 USWIREDClip #4 · @2:28
“we're going to have to do this old school what does old school entail it means we need 600, 00 cash two identical briefcases a fiala cipher machine a hot air balloon Cadbury Cream Eggs half a bald eagle and a fake cipher machine a hot air balloon Cadbury Cream Eggs half a bald eagle and a fake”
- 🇺🇸 USMIT OpenCourseWareClip #5 · @68:13
“Do you know about ballistic coefficient? We found briefcases, pillows. Ballistic coefficient, people talk about it in two different ways, and one is the reciprocal”
意味と定義: “briefcases”
- Rectangular portable cases used for carrying documents, papers, and other items.
動画内の例文 (3)
- “He carried two leather briefcases into the boardroom for the meeting.”
- “The other, you switch briefcases with the person next to you, and so they shoot her instead of shooting you.”
- “people in their important looking suits with their important looking briefcases going back and forth uh to the meetings”
よく使われるフレーズ・コロケーション
発音: “briefcases”
- Pronunciation:
- BREEF-kay-siz
- 音節:
- BREEF · kay · siz
- Written Hyphenation:
- brief · cas · es
- 第1強勢：
- BREEF
- IPA:
- ˈbriːfˌkeɪsɪz
- 文脈で聴く
- briefcases
押韻・ライミングワード： “briefcases”
-ifˌkeɪsɪz発音が全く同じ単語（同音異義語）
固有の発音「briefcases」 (⁄ˈbriːfˌkeɪsɪz⁄) には一般的な語彙において同音異義語がありません。
「briefcases」に関するよくある質問
「briefcases」の英語の発音は？
「briefcases」の発音記号は ⁄ˈbriːfˌkeɪsɪz⁄ (BREEF-kay-siz) 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。
「briefcases」の音節（シラブル）数はいくつですか？
「briefcases」には 3 つの音節があります：BREEF · kay · siz。
「briefcases」のアクセント（強勢）はどこですか？
「briefcases」の第1強勢（主アクセント）は「BREEF」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。
「briefcases」の意味は何ですか？
Rectangular portable cases used for carrying documents, papers, and other items.
「briefcases」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 35 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 “briefcases”?
Avoid pronouncing every vowel with full acoustic weight. Non-native speakers often over-enunciate unstressed vowels. Only give full vowel clarity to the primary stressed syllable. Relax all unstressed vowels into a neutral, low-energy schwa (⁄ə⁄).