Pronunciation

How to pronounce “nuclear

“nuclear” is pronounced /ˈnukliɚ/ (NOO-klee-ur (UK NYOO-klee-ur)) in American English and /ˈnjuːklɪə/ in British English — 3 syllables, stressed on “nu”.
The sound

Say “nuclear” in 3 beats

Say it like this

nuclear

/ˈnukliɚ/

The voice you hear here is American; the British form is /ˈnjuːklɪə/ (see the table below), and a British voice is available in the app's settings.

3 beats
  1. nunustress
  2. klikli
  3. ɚɚ
IPA (American)
/ˈnukliɚ/
IPA (British)
/ˈnjuːklɪə/
Respelling
NOO-klee-ur (UK NYOO-klee-ur)
Syllables
3 — NU-kli-ɚ
Stress
Stress the first syllable: NU-kli-ɚ. “nu” is longer, louder and a step higher; the other syllables fall away from it.
Part of speech
adjective
Difficulty
Beginner — most learners get this on the first take
Accents

American and British are not the same here

American

/ˈnukliɚ/

British

/ˈnjuːklɪə/

No audio here: sayit’s voice is American, so a British button would play the American word. Read the transcription instead.

Watch out

Where “nuclear” goes wrong

  • Often heard

    NOO-kyuh-lur/ˈnukjəlɚ/

    the middle is klee, not kyuh: the word follows nucleus

Meaning

What “nuclear” means

  1. adjective

    (weapons) deriving destructive energy from the release of atomic energy

    nuclear war

  2. adjective

    of or relating to or constituting the nucleus of an atom

    nuclear physics

  3. adjective

    of or relating to or constituting the nucleus of a cell

    nuclear membrane

Say it in a sentence

The nuclear plant on the coast closed in the late nineties.
Sound by sound

The sounds inside this word

6 sounds, in the order you say them

Each sound has its own page: where the tongue goes, what it is usually confused with, and words to drill it on.

Questions

nuclear”, answered

How do you pronounce “nuclear”?

“nuclear” is pronounced /ˈnukliɚ/ (NOO-klee-ur (UK NYOO-klee-ur)) in American English and /ˈnjuːklɪə/ in British English — 3 syllables, stressed on “nu”. Build it as NU-kli-ɚ, then run the first syllable a little longer than the rest and let the others reduce.

How many syllables does “nuclear” have?

3: nu · kli · ɚ. The beat lands on the first, “nu”.

Is “nuclear” said differently in British English?

Yes. American English says /ˈnukliɚ/ (NOO-klee-ur (UK NYOO-klee-ur)); British English says /ˈnjuːklɪə/. Both are correct — choose the accent you are learning and stay inside it.

What does “nuclear” mean?

As an adjective: (weapons) deriving destructive energy from the release of atomic energy For example: “nuclear war” It carries 2 other senses as well — all of them said the same way.

Where is the stress in “nuclear”?

Stress the first syllable: NU-kli-ɚ. “nu” is longer, louder and a step higher; the other syllables fall away from it.

Practise this word

Now say “nuclear” and see every sound

Record it once and sayit lines your audio up against the target sound by sound — what landed, what slipped, and what it sounded like instead.