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theoryThe scientist developed a new theory about the origins of the universe.
The scientist developed a new theory about the origins of the universe.A set of principles or ideas that explain a phenomenon or guide understanding in a particular field.
This theory explains the data well.
This theory explains the data well.Her theory is quite complex.
Her theory is quite complex.We discussed the theory in class.
We talked about the theory in class.scientific theory
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principle
concept