Meaning of THEORY in English

n. Function: noun

1 a belief, policy, or procedure proposed or followed as the basis of action FF1C; an educational system that was based on the theory that men learn best by experience FF1E;

Synonyms: hypothesis, supposal; compare ASSUMPTION 2

Related Words: base, basis, grounds, position, premise, understanding

Antonyms: practice

2 something taken for granted especially on trivial or inadequate grounds FF1C; her theory that the house was haunted FF1E;

Synonyms: conjecture, perhaps, speculation, suppose, supposition

Related Words: guess, guesswork, surmise; feeling, hunch, impression, presentiment, suspicion

Contrasted Words: assurance, certainty, knowledge

Merriam Webster. Collegiate thesaurus English dictionary.      Английский энциклопедический толковый словарь тезауруса.