English Reference

Word

hypotheses

Phoneticshy·pothe·ses

US/haɪˈpɑθəˌsiz/

UK/haɪpˈɒθəsˌiːz/

Definition

n. ideas or guesses that explain how something works but have not been proven yet. Scientists test these ideas with experiments to see if they are true.

n. propositions or explanations made on the basis of limited evidence as a starting point for further investigation. The plural form of 'hypothesis'.

Examples

“The scientists tested several hypotheses during the experiment.”

“After reviewing the initial data, the research team developed three competing hypotheses to explain the sudden drop in water quality.”

“While early researchers proposed that the ruins were religious in nature, modern archaeological hypotheses suggest they served primarily as fortified granaries for the surrounding agricultural communities.”

Examples

simple

“The scientists tested several hypotheses during the experiment.”

contextual

“After reviewing the initial data, the research team developed three competing hypotheses to explain the sudden drop in water quality.”

complex

“While early researchers proposed that the ruins were religious in nature, modern archaeological hypotheses suggest they served primarily as fortified granaries for the surrounding agricultural communities.”

Usage

The plural form of 'hypothesis'; follows Greek-root pluralisation patterns where '-is' becomes '-es'.

Pitfall

The hypotheses is interesting

The hypotheses are interesting

Hypotheses is the plural form and requires a plural verb; the singular form is hypothesis.

Real-World Examples

“None of the hypotheses could fully explain year-to-year variations in the sargassum belt.”
The Conversation · 28 Jul 2026
“Various hypotheses have been proffered as to an assumed original identity.”
JSTOR Daily · 13 May 2026

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

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English Reference