Longman Dictionary of Contemporary English homepage

theorize

 verb
     
Related topics: Hard Science, Politics
theo‧rize also theorise British English [intransitive and transitive]
HP to think of a possible explanation for an event or fact
theorize that
Researchers theorize that there was once a common language for all humanity.
theorize about
They have been theorizing about what may have caused the fire.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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