plural hypotheses
-əˌsiːz 
: an idea or theory that is not proven but that leads to further study or discussion
Other chemists rejected his hypothesis.
put forward a hypothesis = advance a hypothesis
Their hypothesis is that watching excessive amounts of television reduces a person's ability to concentrate.
The results of the experiment did not support/confirm his hypothesis.
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“Hypothesis.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/hypothesis. Accessed 18 Apr. 2026.
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