Meaning of Theory

English: Theory
Bangla: তত্ত্ব, মতবাদ, কিছুর ব্যাখ্যা, কিছুর ক্রিয়াপদ্ধতি, সিদ্ধান্ত, ধারণা, মত, বাদ
Hindi: सिद्धांत, वाद
Type: Noun / বিশেষ্য / संज्ञा

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Bangla Academy Dictionary:

Definition: 1

a coherent group of tested general propositions, commonly regarded as correct, that can be used as principles of explanation and prediction for a class of phenomena: Einstein's theory of relativity. Synonyms: principle, law, doctrine.

Definition: 2

a proposed explanation whose status is still conjectural and subject to experimentation, in contrast to well-established propositions that are regarded as reporting matters of actual fact. Synonyms: idea, notion hypothesis, postulate. Antonyms: practice, verification, corroboration, substantiation.

Definition: 3

Mathematics. a body of principles, theorems, or the like, belonging to one subject: number theory.

Definition: 4

the branch of a science or art that deals with its principles or methods, as distinguished from its practice: music theory.

Definition: 5

a particular conception or view of something to be done or of the method of doing it; a system of rules or principles: conflicting theories of how children best learn to read.