The word “ego” has multiple definitions:

An idea or opinion

One’s ego is their opinion or idea of themselves, especially their sense of importance and ability.

An inflated sense of pride

One’s ego can also be an inflated feeling of pride in their superiority to others.

A sense of self

One’s ego can refer to their sense of self or perception of their identity. It can include a person’s thoughts, beliefs, attitudes, and values.

A sense of worth

One’s ego can also be their sense of their own worth. For example, if someone has a large ego, they think they are very important and valuable.

A part of a person’s personality

According to Sigmund Freud’s theory of personality, the ego is part of a person’s personality and experience.

— Google Generative AI