Korean Dictionary
How to say "Hypothesis" in Korean
“Hypothesis” in Korean is 가설 (pronounced "Gaseol").
가설
Gaseol
Usage & Context
A proposed explanation in scientific research. Korean scientists follow the scientific method, starting with forming a hypothesis before conducting experiments.
Example Sentence
우리의 가설을 검증해야 한다.
We need to verify our hypothesis.
How to use 가설 naturally
Quick answer
The Korean word for “Hypothesis” is 가설, romanized as Gaseol.
Usage tip
Learn this word together with a complete Korean sentence. Meaning often depends on particles, politeness level, and word order.
Common mistake
Do not rely only on the English meaning. Read the Korean example sentence and notice the particles, word order, and politeness level around 가설.
Pronunciation Guide
Pronounced 'gah-seol' — 가 sounds like 'gah' (as in 'father'), and 설 like 'seol' (rhymes with 'soul' but shorter). Literally 'temporary theory'.
More Example Sentences
A scientist presenting lab results.
그 가설은 실험을 통해 입증되었다.
That hypothesis was proven through experiments.
A professor leading a research meeting.
새로운 가설을 세워 봅시다.
Let's come up with a new hypothesis.
Reviewing historical scientific controversies.
그의 가설은 결국 틀린 것으로 밝혀졌다.
His hypothesis was ultimately shown to be incorrect.
Cultural Context
가설 appears not just in science but also in Korean business and consulting, where teams '가설을 세우다' (set up a hypothesis) before gathering data. It's built from 가 (provisional) + 설 (theory), signaling something tentative rather than confirmed. In everyday conversation, Koreans may prefer the softer '추측' (guess) or '예상' (expectation), reserving 가설 for formal or academic settings.
Editorial note
We review entries like 가설 for pronunciation, example sentence fit, and learner mistakes so the page answers more than a direct dictionary lookup.
Reviewed by Min-jung Park, Korean Language Teacher. Updated May 31, 2026. See our editorial standards.
Common Phrases
가설을 세웠어요.
I set up a hypothesis.
가설이 맞았어요.
The hypothesis was correct.
가설을 검증해야 해요.
We need to verify the hypothesis.
Related Expressions
이론
iron
Theory (established)
추측
chuchuk
Guess/conjecture
가정
gajeong
Assumption/supposition
검증
geomjeung
Verification
More Science & Research Words
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