IPA: /ˈiːɡəˌtɪst/
KK: /ˈiːɡəˌtɪst/
A person who is very proud of themselves and often talks about their own achievements and qualities.
He is such an egotist that he never listens to anyone else's opinions.
Egotist → It is formed from "ego" (from Latin, meaning I or self) and "-ist" (meaning one who practices or is concerned with). An egotist is someone who is excessively focused on themselves or their own interests.
Think of 'ego' meaning self, and remember that an egotist is someone who is all about themselves.