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How to pronounce "katalyst" in English

katalyst is pronounced ˈkæt.əl.ɪst, with primary stress on the “KAT” syllable. Listen to the audio pronunciation and review phonetic syllables below.

ˈkæt.əl.ɪst

KAT·əl·ist

Primary stress: KAT

Accent:
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We haven’t indexed spoken video clips for this word in our library yet. You can listen to its audio pronunciation, review phonetic IPA, and check definitions below.

No video clips indexed yet for “katalyst”

We haven’t indexed spoken video clips for this word in our library yet. You can listen to its audio pronunciation, review phonetic IPA, and check definitions below.

IPAˈkæt.əl.ɪst
SayKAT-əl-ist
SyllablesKAT · əl · ist

Linguistic Pronunciation Masterclass: “katalyst”

Phonetic mechanics, syllable architecture, and conversational cadence

ˈkæt.əl.ɪst

Syllable Architecture & Stress Distribution

Syllable 1Primary Stress

KAT

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

Syllable 2Unstressed

əl

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

Syllable 3Unstressed

ist

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

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

Common Pronunciation Traps & Learner Mistakes

⚠️ Intervocalic Tap / Flap [ɾ] in American English

The Trap: Pronouncing a hard, aspirated [tʰ] in casual conversation can sound overly formal in North America.

How Native Speakers Say It: In American English, a single "t" between vowels quickly taps against the alveolar ridge like a soft "d" ([ɾ]). In British English, maintain a crisp aspirated [tʰ].

Connected Speech & Natural Conversational Flow

🔗 Consonant-Vowel Linking (Liaison)

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

⏱️ Stress-Timed Rhythm

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

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Practice Speaking “katalyst”

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IPA:ˈkæt.əl.ɪst
Speech ShadowingAccent: US
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Target Phrase:

The scientist added a katalyst to accelerate the reaction in the test tube.

Hear it in context: “katalyst”

The English word “katalyst” is transcribed in the International Phonetic Alphabet (IPA) as ˈkæt.əl.ɪst (phonetic respelling: KAT-əl-ist). Phonologically, it consists of 3 syllables (KAT · əl · ist), with primary lexical stress placed on the 1st (initial) syllable (KAT). Grammatically, “katalyst” functions as a noun. Hear native speakers say katalyst in context across real video clips

Definition & Meaning: “katalyst”

NOUN
  • A variant spelling of catalyst referring to a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

Example Sentences (1)

  • “The scientist added a katalyst to accelerate the reaction in the test tube.”

Pronounce: “katalyst”

Pronunciation:
KAT-əl-ist
Syllables:
KAT · əl · ist
Written Hyphenation:
kat · al · yst
Primary stress:
KAT
IPA:
ˈkæt.əl.ɪst
Hear it in context
katalyst

Words that Rhyme with “katalyst”

-ætəlɪst
View all 1 rhymes for “katalyst”

Words that Sound Identical (Homophones)

Unique Sound
Explore 800+ homophone pairs

"katalyst" (⁄ˈkæt.əl.ɪst⁄) 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, "katalyst" has a completely distinct phonetic identity.

Frequently asked questions about katalyst

How do you pronounce “katalyst”?

“katalyst” is pronounced ⁄ˈkæt.əl.ɪst⁄ (KAT-əl-ist). Listen to the audio pronunciation above to hear it spoken clearly.

How many syllables are in “katalyst”?

“katalyst” has 3 syllables: KAT · əl · ist.

Where is the stress in “katalyst”?

The primary stress in “katalyst” is on “KAT”.

What does “katalyst” mean?

A variant spelling of catalyst referring to a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

What is the most common pronunciation mistake when saying “katalyst”?

Pronouncing a hard, aspirated [tʰ] in casual conversation can sound overly formal in North America. In American English, a single "t" between vowels quickly taps against the alveolar ridge like a soft "d" ([ɾ]). In British English, maintain a crisp aspirated [tʰ].