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hypothesis

noun

Simple meaning

An idea you test to see if it is true.

Pronunciation

Say it like this:

hypahthuhsuhs

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US device voice
IPA pronunciation (US)

haɪˈpɑθəsəs

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. sciences

    A tentative conjecture explaining an observation, phenomenon or scientific problem and that can be tested by further observation, investigation, or experimentation.

  2. general

    An assumption taken to be true for the purpose of argument or investigation.

  3. grammar

    The antecedent of a conditional statement.

Word at a Glance

Difficulty
B2 · Upper Intermediate
Frequency
Moderately Common
Typical Use
Neutral / general English

Word Aura™

How this word commonly comes across.

Aura for this meaning

This meaning: (sciences) A tentative conjecture explaining an observation, phenomenon or scientific problem and that can be tested by further observation, investigation, or experimentation.

Used this way, hypothesis is a specialist word that usually carries little praise or criticism of its own. It turns up most in science contexts.

Emotional tone
Neutral
Formality
Specialist/technical
Intensity
Not strongly marked
How common
Specialized
Connotation
Clinical and technical
Usage feel
Technical and specialized

Where it naturally appears

  • Science

Usage note

In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.

Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.

More ways to use hypothesis

  • “A scientific hypothesis that survives experimental testing becomes a scientific theory.”noun

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Common Patterns and Combinations

How this word naturally appears with others.

Tentative / proposal

hypothesis testresearch hypothesis

Other combinations

null hypothesisalternative hypothesisworking hypothesissecond hypothesisfirst hypothesisgeneral hypothesis

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Word Family

Related forms, grouped by how they connect.

Compound terms

Established multiword terms.

  • avogadro's hypothesisnounCompound term

    The principle that equal volumes of all gases (given the same temperature and pressure) contain equal numbers of molecules.

  • nebular hypothesisnounCompound term

    The theory that the solar system evolved from a hot gaseous nebula.

  • planetesimal hypothesisnounCompound term

    The theory that the solar system was formed by the gravitational accumulation of planetesimals.

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.