# hypotheses vs hypothesis

> English confusable word pair

## The two words

### hypotheses
*noun · IPA /haɪˈpɒθəˌsiːz/ · frequency rank #22,405*
plural of hypothesis

### hypothesis
*noun · IPA /haɪˈpɒθɪsɪs/ · frequency rank #8,678*
A tentative conjecture explaining an observation, phenomenon or scientific problem and that can be tested by further observation, investigation, or experimentation.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/vs/hypotheses-vs-hypothesis