Meaning of the word theories in English

What does theories mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

theories

US /ˈθiː.ə.riz/
UK /ˈθɪə.riz/

Plural Noun

1.

a set of principles on which the practice of an activity is based

Example:
The new management theories emphasize collaboration.
He studied various economic theories.
2.

a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained

Example:
There are many theories about the origin of the universe.
His theories on human behavior are quite controversial.