theories

noun

USTHEE-uh-reez/ˈθiːəɹiz/UK · AUSTHEER-eez/ˈθɪəɹiz/

1 meaning of theories

1
noun
Plural of theory. Use this form when you mean more than one idea that explains something.
Scientists test many theories before they accept one as true.
We discussed several theories about why the dinosaurs died out.
Note

theories is a form of theory

theory, noun: An idea that explains why something happens or how something works, often one that has not been proved. Full entry

Forms: theorytheories plural
Spelling: theory → theories: change y to i, add -es

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