Pronunciation

How to pronounce “theory

“theory” is pronounced /ˈθɪɹi/ (THI-ree) in American English and /θiəɹi/ in British English, and /ˈθiɚi/ is also accepted — 2 syllables, stressed on “theor”.
The sound

Say “theory” in 2 beats

Say it like this

theory

/ˈθɪɹi/

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

2 beats
  1. theorθɪstress
  2. yɹi
IPA (American)
/ˈθɪɹi/
IPA (British)
/θiəɹi/
Also accepted
/ˈθiɚi/
Respelling
THI-ree
Syllables
2 — THEOR-y
Stress
Stress the first syllable: THEOR-y. “theor” is longer, louder and a step higher; the other syllable falls away from it.
Part of speech
noun
Difficulty
Beginner — most learners get this on the first take
Accents

American and British are not the same here

American

/ˈθɪɹi/

British

/θiəɹi/

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

Meaning

What “theory” means

  1. noun

    a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena

    theories can incorporate facts and laws and tested hypotheses

  2. noun

    a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena

    a scientific hypothesis that survives experimental testing becomes a scientific theory

  3. noun

    a belief that can guide behavior

    the architect has a theory that more is less

Say it in a sentence

The theory is elegant but very hard to test.
Sound by sound

The sounds inside this word

4 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

theory”, answered

How do you pronounce “theory”?

“theory” is pronounced /ˈθɪɹi/ (THI-ree) in American English and /θiəɹi/ in British English, and /ˈθiɚi/ is also accepted — 2 syllables, stressed on “theor”. Build it as THEOR-y, then run the first syllable a little longer than the rest and let the others reduce.

How many syllables does “theory” have?

2: theor · y. The beat lands on the first, “theor”.

Is “theory” said differently in British English?

Yes. American English says /ˈθɪɹi/ (THI-ree); British English says /θiəɹi/. Both are correct — choose the accent you are learning and stay inside it.

What does “theory” mean?

As a noun: a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena For example: “theories can incorporate facts and laws and tested hypotheses” It carries 2 other senses as well — all of them said the same way.

Where is the stress in “theory”?

Stress the first syllable: THEOR-y. “theor” is longer, louder and a step higher; the other syllable falls away from it.

Practise this word

Now say “theory” 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.