Definitions

1. verb

to form or propose a theory or hypothesis about something, especially based on incomplete or uncertain evidence

“She has begun to theorise about the causes of the global warming.”

2. verb

to imagine or propose a theory or idea, often in an informal or speculative way

“He likes to theorise about the future of technology.”

3. verb

to make a theory or hypothesis about something, especially in a way that is not supported by evidence

“The scientist was careful not to theorise about the results of the experiment until they were confirmed.”