Theory

/θˈi‍əɹi/

/ˈθiɝi/, /ˈθɪɹi/

Theory

a set of ideas intended to explain the reason behind the existence or occurrence of something

a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena

synonyms : hypothesis

an idea, opinion, or belief that one perceives to be true, although it remains to be proved

Examples

1. I don't have any theories.

2. The grand unified theory is compact and elegant in mathematical terms.

3. The scientist presented an abstract theory that revolutionized our understanding of the universe.

4. Her controversial new theory flies in the face of everything we know about quantum mechanics.