How to pronounce "thermosphere" in English
ˈθɝməsfɪɚ
THUR·məs·fih·ər
Primary stress: THUR
Hear native speakers say thermosphere in context across real video clips
talk to you about the fundamental laws of radiation. Now, I mentioned this the other day when we were talking about the stratosphere and the thermosphere. about the stratosphere and the thermosphere.
Linguistic Pronunciation Masterclass: “thermosphere”
Phonetic mechanics, syllable architecture, and conversational cadence
Syllable Architecture & Stress Distribution
THUR
Elevated pitch, sustained vowel length, and full acoustic clarity.
məs
Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.
fih
Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.
ər
Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.
Primary emphasis falls on the first syllable ("THUR"). 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. Vibrate your vocal cords while pushing air through to produce ⁄ð⁄.
Connected Speech & Natural Conversational Flow
When followed by a vowel, insert a subtle glide (/w/ or /j/) to connect into the subsequent word without an abrupt glottal stop.
Maintain the stress-timed rhythm of English: compress unstressed syllables rapidly so the beat of "thermosphere" aligns naturally with adjacent words.
Authentic Spoken Quotes from Native Video Context
“Now, I mentioned this the other day when we were talking about the stratosphere and the thermosphere.”— YaleCoursesWatch clip
“km uh the ion spere is part of the ionosphere is in the thermosphere and”— StanfordWatch clip
“You can see it actually does get warm again way up high in the thermosphere.”— MIT OpenCourseWareWatch clip
“So we go through the atmosphere, down the thermosphere, mesosphere, stratosphere,”— TEDx TalksWatch clip
“Then temperatures drop in the mesosphere and increase again in the incredibly hot thermosphere where the few air molecules floating around out there can get to be 1, 100 degrees Celsius!”— Native SpeakerWatch clip
“Brazil and this is the thermosphere now now the Baltimore hasn't considered to feed yet um he might not accept the vote's”— Native SpeakerWatch clip
Practice Speaking “thermosphere”
Listen to native pronunciation, record yourself repeating the sentence into your microphone, and receive real-time word-by-word accuracy scoring.
Now, I mentioned this the other day when we were talking about the stratosphere and the thermosphere.
Hear it in context: “thermosphere”
21 clipsThe English word “thermosphere” is transcribed in the International Phonetic Alphabet (IPA) as ˈθɝməsfɪɚ (phonetic respelling: THUR-məs-fih-ər). Phonologically, it consists of 4 syllables (THUR · məs · fih · ər), with primary lexical stress placed on the 1st (initial) syllable (THUR). Grammatically, “thermosphere” functions as a noun. SayItVid indexes 21 authentic English video clips demonstrating how native speakers articulate “thermosphere” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from YaleCourses, Stanford, MIT OpenCourseWare.
Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)
- 🇺🇸 USYaleCoursesClip #1 · @3:53
“talk to you about the fundamental laws of radiation. Now, I mentioned this the other day when we were talking about the stratosphere and the thermosphere. about the stratosphere and the thermosphere.”
- 🇺🇸 USStanfordClip #2 · @22:55
“Station orbits in the thermosphere between 320 and 380 km uh the ion spere is part of the ionosphere is in the thermosphere and it's created in the thermosphere and it has not been sampled for microbes”
- 🇺🇸 USMIT OpenCourseWareClip #3 · @4:11
“the higher temperatures. You can see it actually does get warm again way up high in the thermosphere. in the thermosphere.”
- 🇺🇸 USTEDx TalksClip #4 · @1:59
“It’s not very far. So we go through the atmosphere, down the thermosphere, mesosphere, stratosphere, down the thermosphere, mesosphere, stratosphere,”
- 🇺🇸 USClip #5 · @2:53
“causes temperatures to increase in the stratosphere. Then temperatures drop in the mesosphere and increase again in the incredibly hot thermosphere where the few air molecules floating around out there can get to be 1, 100 degrees Celsius! where the few air molecules floating around out there can get to be 1,100 degrees Celsius!”
Definition & Meaning: “thermosphere”
- The layer of the Earth's atmosphere directly above the mesosphere and directly below the exosphere.
Example Sentences (3)
- “The mesosphere may be described as the earth's intermediate or middle atmosphere, which separates the thermosphere above from the ozonosphere (or stratosphere) below, both of which are responsible for absorption of most of the ultraviolet part of the solar radiation and preventing it from reaching the earth's surface.”
- “Now, I mentioned this the other day when we were talking about the stratosphere and the thermosphere.”
- “km uh the ion spere is part of the ionosphere is in the thermosphere and”
Common Phrases & Collocations
Pronounce: “thermosphere”
- Pronunciation:
- THUR-məs-fih-ər
- Syllables:
- THUR · məs · fih · ər
- Written Hyphenation:
- ther · mos · phere
- Primary stress:
- THUR
- IPA:
- ˈθɝməsfɪɚ
- Hear it in context
- thermosphere
Words that Rhyme with “thermosphere”
-ɝməsfɪɚWords that Sound Identical (Homophones)
Unique Sound"thermosphere" (⁄ˈθɝməsfɪɚ⁄) 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, "thermosphere" has a completely distinct phonetic identity.
Frequently asked questions about thermosphere
How do you pronounce “thermosphere”?
“thermosphere” is pronounced ⁄ˈθɝməsfɪɚ⁄ (THUR-məs-fih-ər). Listen to the native-speaker clips above to hear it in real conversation.
How many syllables are in “thermosphere”?
“thermosphere” has 4 syllables: THUR · məs · fih · ər.
Where is the stress in “thermosphere”?
The primary stress in “thermosphere” is on “THUR”. Listen for that stressed syllable in the clips above.
What does “thermosphere” mean?
The layer of the Earth's atmosphere directly above the mesosphere and directly below the exosphere.
How can I hear “thermosphere” used in real sentences?
This page has 21 real-world video examples of “thermosphere” 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 “thermosphere”?
Many learners substitute "th" with "s", "z", "t", or "d". Place the flat blade of your tongue lightly between your upper and lower incisors. Vibrate your vocal cords while pushing air through to produce ⁄ð⁄.