theories

Noun

Plural form of 'theory', which is a supposition or a system of ideas intended to explain something.

ریشه

From the Greek 'theoria' meaning 'contemplation, speculation'.

مثال

• There are many theories about the origin of the universe.
• His theories on economics are widely respected.
• Theories should be based on empirical evidence.

ترکیب‌های رایج

Scientific theories Economic theories Theories about Theories on