theory

théorie, hypothèse

Idée non prouvée sur la cause d’un événement ou sur ce qui est vrai.

En anglais simple : An idea about why something happened or what is true, which has not been proved.

• I have a theory about the noise.
• Her theory was that the dog had escaped.
• The police considered several theories about his disappearance.

Comment l'utiliser : a theory about something (Do you have a theory about the missing money?); a theory that… (My theory is that someone left the door open.)

Synonymes : idea, guess, hypothesis, conjecture

Expressions courantes : my theory, one theory, theory about something

théorie

Ensemble d’idées expliquant comment ou pourquoi un phénomène se produit, généralement appuyé par des preuves.

En anglais simple : A set of ideas that explains how or why something happens, usually supported by evidence.

• This theory explains how stars form.
• New evidence supports the scientist's theory.
• Researchers tested several theories about the disease.

Comment l'utiliser : a theory of something (We discussed the theory of evolution in class.)

Expressions courantes : scientific theory, theory of evolution, test a theory

théorie

Discipline qui étudie les règles et les idées à la base d’un domaine particulier.

En anglais simple : A subject that studies the rules and ideas behind a particular kind of thing.

• She studies number theory.
• Our music theory course starts next week.
• Graph theory helps researchers understand networks.

Expressions courantes : number theory, knot theory, music theory, set theory