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How to pronounce "brachytherapy" in English

brachytherapy is pronounced ˌbɹækiˈθɛrəpi, with primary stress on the “THAIR” syllable. Hear authentic native speakers pronounce it in 24 clips with synchronized subtitles and timestamps below.

ˌbɹækiˈθɛrəpi

bra·kee·THAIR·ə·pee

Primary stress: THAIR

Accent:
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IPAˌbɹækiˈθɛrəpi
Saybra-kee-THAIR-ə-pee
Syllablesbra · kee · THAIR · ə · pee
Hear it in contextUS
1:32
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Linguistic Pronunciation Masterclass: “brachytherapy”

Phonetic mechanics, syllable architecture, and conversational cadence

ˌbɹækiˈθɛrəpi

Syllable Architecture & Stress Distribution

Syl. 1Unstressed

bra

Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.

Syl. 2Unstressed

kee

Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.

Syl. 3Stress

THAIR

Elevated pitch, sustained vowel length, and full acoustic clarity.

Syl. 4Unstressed

ə

Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.

Syl. 5Unstressed

pee

Neutral schwa (⁄ə⁄): relaxed jaw, brief unstressed breath.

Primary emphasis falls on the third syllable ("THAIR"). Raise your pitch and sustain the vowel length on this syllable while relaxing the surrounding syllables.

Common Pronunciation Traps & Learner Mistakes

⚠️ Voiced Dental Fricative ⁄ð⁄

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

🔗 Consonant-Vowel Linking (Liaison)

When "brachytherapy" is followed by a word starting with a vowel, glide the final consonant into the opening vowel (e.g. "brachytherapy is" sounds like "brachytherapy-iz").

⏱️ Stress-Timed Rhythm

Maintain the stress-timed rhythm of English: compress unstressed syllables rapidly so the beat of "brachytherapy" aligns naturally with adjacent words.

Authentic Spoken Quotes from Native Video Context

Verified Transcripts
“We looked at medical uses of radiation, from implanting radioactive seeds called brachytherapy seeds in certain places to destroy tumors,”
— MIT OpenCourseWareWatch clip
“there is brachytherapy or treatment at a short distance this is something you may have heard of where we implant”
— StanfordWatch clip
“This should remind you of the Brachytherapy we talked about a few slides ago.”
— YaleCoursesWatch clip
“He was undergoing a treatment -- chemotherapy treatments -- and there's a related treatment called brachytherapy, where tiny, radioactive seeds are placed into the body”
— Native SpeakerWatch clip
“Let's see-- we talked about brachytherapy.”
— MIT OpenCourseWareWatch clip
“is extremely good at mimicking what we can do with brachytherapy implanting seeds into prostates so let's say for example”
— StanfordWatch clip
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IPA:ˌbɹækiˈθɛrəpi
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We looked at medical uses of radiation, from implanting radioactive seeds called brachytherapy seeds in certain places to destroy tumors,

Hear it in context: “brachytherapy”

24 clips

The English word “brachytherapy” is transcribed in the International Phonetic Alphabet (IPA) as ˌbɹækiˈθɛrəpi (phonetic respelling: bra-kee-THAIR-ə-pee). Phonologically, it consists of 5 syllables (bra · kee · THAIR · ə · pee), with primary lexical stress placed on the 3rd syllable (THAIR). Grammatically, “brachytherapy” functions as a noun. SayItVid indexes 24 authentic English video clips demonstrating how native speakers articulate “brachytherapy” in natural connected speech across American (US: 8 sampled), British (UK), and Australian (AUS) accents, including verified broadcasts from MIT OpenCourseWare, Stanford, YaleCourses.

Spoken Video Transcripts & Contextual Quotes (5 Verified Clips)

  • 🇺🇸 USMIT OpenCourseWare
    Clip #1 · @1:32
    “is excess mass, binding energy, nuclear stability. We looked at medical uses of radiation, from implanting radioactive seeds called brachytherapy seeds in certain places to destroy tumors, from implanting radioactive seeds called”
  • 🇺🇸 USStanford
    Clip #2 · @46:53
    “delivered over periods of time of four or five weeks there is brachytherapy or treatment at a short distance this is something you may have heard of where we implant something you may have heard of where we implant”
  • 🇺🇸 USYaleCourses
    Clip #3 · @34:25
    “delivered locally over a long period of time after they leave the operating room. This should remind you of the Brachytherapy we talked about a few slides ago. Brachytherapy we talked about a few slides ago.”
  • 🇺🇸 US
    Clip #4 · @9:59
    “when my father was in the hospital. He was undergoing a treatment -- chemotherapy treatments -- and there's a related treatment called brachytherapy, where tiny, radioactive seeds are placed into the body and there's a related treatment called brachytherapy,”
  • 🇺🇸 USMIT OpenCourseWare
    Clip #5 · @2:06
    “depending on their energy and what you're sending them into. Let's see-- we talked about brachytherapy. We talked about radiotracers, and this”

Definition & Meaning: “brachytherapy”

NOUN
  • Radiotherapy using radioactive sources positioned within (or close to) the treatment volume, typically with radiopharmaceuticals as opposed to external-beam sources.

Example Sentences (2)

  • “We looked at medical uses of radiation, from implanting radioactive seeds called brachytherapy seeds in certain places to destroy tumors,”
  • “there is brachytherapy or treatment at a short distance this is something you may have heard of where we implant”

Common Phrases & Collocations

brachytherapy implantingbrachytherapy seedsago brachytherapy

Pronounce: “brachytherapy”

Pronunciation:
bra-kee-THAIR-ə-pee
Syllables:
bra · kee · THAIR · ə · pee
Written Hyphenation:
bra · chy · the · ra · py
Primary stress:
THAIR
IPA:
ˌbɹækiˈθɛrəpi
Hear it in context
brachytherapy

Words that Rhyme with “brachytherapy”

-ɛrəpi
View all 5 rhymes for “brachytherapy”

Words that Sound Identical (Homophones)

Unique Sound
Explore 800+ homophone pairs

"brachytherapy" (⁄ˌbɹækiˈθɛrəpi⁄) 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, "brachytherapy" has a completely distinct phonetic identity.

Frequently asked questions about brachytherapy

How do you pronounce “brachytherapy”?

“brachytherapy” is pronounced ⁄ˌbɹækiˈθɛrəpi⁄ (bra-kee-THAIR-ə-pee). Listen to the native-speaker clips above to hear it in real conversation.

How many syllables are in “brachytherapy”?

“brachytherapy” has 5 syllables: bra · kee · THAIR · ə · pee.

Where is the stress in “brachytherapy”?

The primary stress in “brachytherapy” is on “THAIR”. Listen for that stressed syllable in the clips above.

What does “brachytherapy” mean?

Radiotherapy using radioactive sources positioned within (or close to) the treatment volume, typically with radiopharmaceuticals as opposed to external-beam sources.

How can I hear “brachytherapy” used in real sentences?

This page has 24 real-world video examples of “brachytherapy” 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 “brachytherapy”?

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⁄.