ଅର୍ଥ : A well-substantiated explanation of some aspect of the natural world. An organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena.
							ଉଦାହରଣ : 
							Theories can incorporate facts and laws and tested hypotheses.
							True in fact and theory.
							
ଅର୍ଥ : A tentative insight into the natural world. A concept that is not yet verified but that if true would explain certain facts or phenomena.
							ଉଦାହରଣ : 
							A scientific hypothesis that survives experimental testing becomes a scientific theory.
							He proposed a fresh theory of alkalis that later was accepted in chemical practices.
							
ସମକକ୍ଷ : hypothesis, possibility
ଅର୍ଥ : A belief that can guide behavior.
							ଉଦାହରଣ : 
							The architect has a theory that more is less.
							They killed him on the theory that dead men tell no tales.