How to pronounce "costar" in English
ˈkoʊ.stɑːr
KOH·star
Primary stress: KOH
Hear native speakers say costar in context across real video clips
Linguistic Pronunciation Masterclass: “costar”
Phonetic mechanics, syllable architecture, and conversational cadence
Syllable Architecture & Stress Distribution
KOH
Gliding diphthong with sustained vocal resonance.
star
Reduced vowel sound, relaxed jaw, and minimal vocal effort.
Primary emphasis falls on the first syllable ("KOH"). 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 "costar" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "costar is" sounds like "costar-iz").
In natural sentences, avoid over-stressing "costar" unless it conveys the core contrast or focal point of your message.
Authentic Spoken Quotes from Native Video Context
“Our collaboration with CoStar Group has yielded an impossibly intricate 3D model of the Green Bank Telescope”— TEDx TalksWatch clip
“And I did, Comedy Bang Bang I think it was my first official costar.”— WIREDWatch clip
“When you check CoStar today, it's almost leased up.”— MIT OpenCourseWareWatch clip
“And you definitely don't Google your name with the words "feet" or "butt" or you and any male costar.”— Native SpeakerWatch clip
“Zillow and Redfin, already essentially, along with one other company called CoStar, already own about 85% of the market,”— CNBCWatch clip
“entre le ba costar mas trabajo bargain armas tiempo sin embargo no por ESO vas”— Native SpeakerWatch clip
Practice Speaking “costar”
Listen to native pronunciation, record yourself repeating the sentence into your microphone, and receive real-time word-by-word accuracy scoring.
Our collaboration with CoStar Group has yielded an impossibly intricate 3D model of the Green Bank Telescope
Hear it in context: “costar”
15 clipsThe English word “costar” is transcribed in the International Phonetic Alphabet (IPA) as ˈkoʊ.stɑːr (phonetic respelling: KOH-star). Phonologically, it consists of 2 syllables (KOH · star), with primary lexical stress placed on the 1st (initial) syllable (KOH). Grammatically, “costar” functions as a noun, verb and acts as an English heteronym where syllable stress shifts between noun (initial-syllable stress) and verb (second-syllable stress) usage. SayItVid indexes 15 authentic English video clips demonstrating how native speakers articulate “costar” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from TEDx Talks, WIRED, MIT OpenCourseWare.
Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)
- 🇺🇸 USTEDx TalksClip #1 · @10:37
“where no cameras are allowed. Our collaboration with CoStar Group has yielded an impossibly intricate 3D model of the Green Bank Telescope yielded an impossibly intricate 3D model”
- 🇺🇸 USWIREDClip #2 · @6:01
“our start basically on Comedy Bang Bang. And I did, Comedy Bang Bang I think it was my first official costar. I think it was my first official costar.”
- 🇺🇸 USMIT OpenCourseWareClip #3 · @27:22
“And Hudson is almost leased up. When you check CoStar today, it's almost leased up. It's 10 million.”
- 🇺🇸 USClip #4 · @13:22
“You just don't engage. And you definitely don't Google your name with the words "feet" or "butt" or you and any male costar. with the words "feet" or "butt" or you and any male costar.”
- 🇺🇸 USCNBCClip #5 · @4:30
“filed a similar complaint against the two companies. Zillow and Redfin, already essentially, along with one other company called CoStar, already own about 85% of the market, along with one other company called CoStar,”
Definition & Meaning: “costar”
- A person who shares star billing with another.
- A person who slightly lacks the status to be considered a star.
- To perform with the billing of a costar.
- To feature (a number of star performers) jointly.
Example Sentences (3)
- “The once famous actor objected to his costar having a bigger dressing room.”
- “Alas, always a costar but never a star.”
- “Our collaboration with CoStar Group has yielded an impossibly intricate 3D model of the Green Bank Telescope”
Common Phrases & Collocations
Pronounce: “costar”
- Pronunciation:
- KOH-star
- Syllables:
- KOH · star
- Written Hyphenation:
- cos · tar
- Primary stress:
- KOH
- IPA:
- ˈkoʊ.stɑːr
- Hear it in context
- costar
Words that Rhyme with “costar”
-oʊstɑrWords that Sound Identical (Homophones)
Unique Sound"costar" (⁄ˈkoʊ.stɑːr⁄) 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, "costar" has a completely distinct phonetic identity.
Frequently asked questions about costar
How do you pronounce “costar”?
“costar” is pronounced ⁄ˈkoʊ.stɑːr⁄ (KOH-star). Listen to the native-speaker clips above to hear it in real conversation.
How many syllables are in “costar”?
“costar” has 2 syllables: KOH · star.
Where is the stress in “costar”?
The primary stress in “costar” is on “KOH”. Listen for that stressed syllable in the clips above.
What does “costar” mean?
A person who shares star billing with another.
How can I hear “costar” used in real sentences?
This page has 15 real-world video examples of “costar” 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 “costar”?
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⁄).