Pronunciation

/ˈθɪəri/

Definitions

Noun

1. A system of beliefs or principles that explains a particular aspect of reality or the natural world, often based on scientific evidence or reasoning: The theory of evolution explains how species change over time.
2. A proposed explanation or model for a phenomenon or set of phenomena: Gravity is a well-established scientific theory.
3. A hypothesis or idea that has not yet been proven but is being investigated: There are several competing economic theories about inflation.

Verb

1. To propose or advance a theory: Scientists are currently theorizing about dark matter’s role in the universe.
2. To consider or discuss a theory as a basis for understanding something: We need to theory out how to solve this problem.

Adjective

1. Relating to or characterized by a systematic method or approach: The theoretical implications of the experiment were profound.
2. Based on or involving abstract concepts rather than practical application: A purely theoretical discussion.

Phrases

• “Underlying theory”
• “Develop a new theory”
• “Challenge the prevailing theory”
• “Test the theory”
• “Apply a scientific theory”

Example Sentences

• Noun: “His groundbreaking theory revolutionized the field of physics.”
• Verb: “The scientists have developed a new theory about the formation of stars.”
• Adjective: “Theoretical models often simplify complex systems for analysis.”

Synonyms

• Hypothesis
• Concept
• Explanation
• Doctrine
• Principle
• Assumption
• Framework
• Idea