noun
ego
EE-goh/ˈiːɡəʊ/
A person's sense of self and personal identity.
He has a strong ego and a clear sense of identity.

Etymology
Latin ego means “I.” English turned that pronoun into a noun for the thinking, feeling self, then extended it to conceit—an inflated sense of personal importance.
In context
Having a large ego is different than simply being confident in your abilities. It's important to know the difference between being egotistical and being confident, as well as the difference between always focusing on self-interest and self-care.
More examples
- The criticism hurts her ego more than she admits.
- They set their egos aside and work together.
- In psychology, ego can refer to the conscious sense of self.
Forms
ego · egos
egotism noun — The habit of emphasizing one's own importance.