core

ChatGPT's explanation of "core": Core: refers to the central part or the most important part of something, usually used to describe the core elements of a concept, system or organization.
Explanation: The word core is often used in various fields, such as business, technology, psychology, etc., to indicate the most critical or basic part of a complex system. It can be the core idea of ​​a theory, the core value of a company, or the core cause of a problem.
Example:

In this project, the needs of our customers are at our core.
This book explores the core motivations of human behavior.
The company's core competitiveness lies in its innovative technology.

example:

In business, a company's core values ​​might include integrity, innovation, and customer focus.
In scientific research, the core assumptions of a theory are the basis for understanding the entire study.

Origin: The word core originates from Chinese, literally meaning "heart" or "center", and is used to describe the central or most important part of something.

ChatGPT definition