concept
n. countablen. an idea or a principle that explains how something works. You use this word when talking about a general thought rather than a specific object.
n. an abstract idea or a general notion that represents a class of objects or phenomena. Often used in academic contexts to describe the theoretical framework of a study or design.
The concept of time travel is popular in movies.
The architect presented a new concept for the city park that focused on sustainable energy and local plants.
While the mathematical concept is relatively simple to grasp in isolation, applying it to real-world economic models requires a deep understanding of statistical variance.
Commonly followed by the preposition 'of' to define the specific idea being discussed.