1. (noun)theory 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 Synonyms: possibility, hypothesis
1. theory A hypothesis is a statement of what is deemed possibly true, assumed and reasoned upon as if certainly true, with a view of reaching truth not yet surely known; especially, in the sciences, a hypo Synonyms: hypothesis, conjecture, scheme, supposition, system, guess, speculation, surmise, theory Antonyms: certainty, demonstration, discovery, evidence, fact, proof
Synonyms for theory 
