the·o·ry
ˈTHēərē,ˈTHi(ə)rē/
noun
noun: theory; plural noun: theories
a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
"Darwin's theory of evolution"
synonyms: hypothesis, thesis, conjecture, supposition, speculation, postulation, postulate, proposition, premise, surmise, assumption, presupposition; More
opinion, view, belief, contention
"I reckon that confirms my theory"
principles, ideas, concepts;
philosophy, ideology, system of ideas, science
"modern economic theory"
a set of principles on which the practice of an activity is based.
"a theory of education"
an idea used to account for a situation or justify a course of action.
"my theory would be that the place has been seriously mismanaged"