noun · academic

hypothesis

UK/haɪˈpɒθəsɪs/US/haɪˈpɑːθəsɪs/hy·PO·the·sis

Band 4-5task2speaking

an idea or explanation that you then test through study or experiment

Examples

The hypothesis predicts that lower temperatures will reduce enzyme activity.

We tested the hypothesis using a controlled experiment.

Their hypothesis was not supported by the data.

Band 8 sentence

The researchers proposed a testable hypothesis linking urban green spaces to measurable improvements in mental health.

Collocations

  • test a hypothesis
  • formulate a hypothesis
  • support/refute a hypothesis

Word family

hypothesis nounhypothesize verbhypothetical adjective

Common mistakes

a hypothesisesa hypothesis / hypotheses (plural)

prove the hypothesissupport/refute the hypothesis / provide evidence for the hypothesis

Say it for a higher band

5guess6assumption7+hypothesis

Synonyms

assumption

Easily confused

theory

Einstein's theory of relativity explains many phenomena that simple hypotheses cannot.

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