Definitions

1. noun

a proposed explanation or interpretation of the natural world, based on evidence from observation, research, or experience

“The scientist developed a new theory to explain the phenomenon.”

2. noun

a set of ideas or principles that are intended to be used as a basis for action or decision-making

“She based her decision on a theory of personal responsibility.”

3. verb

to propose or suggest an explanation or idea for something

“He theorized that the new technology could be used for medical research.”

4. verb

to assume or suppose something to be true

“She theorized that the company would go bankrupt.”

5. adjective

based on or suggesting a theory

“a theoretical physicist”