Meaning of THEORY in English
n. 25B6; noun
I reckon that confirms my theory : HYPOTHESIS, thesis, conjecture, supposition, speculation, postulation, postulate, proposition, premise, surmise, assumption, presupposition; opinion, view, belief, contention.
modern economic theory : PRINCIPLES, ideas, concepts; philosophy, ideology, system of ideas, science.
25A0; in theory IN PRINCIPLE, on paper, in the abstract, all things being equal, in an ideal world; hypothetically.
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012