egomaniac
🇺🇸
/ˌiːɡəʊˈmeɪniæk/
🇬🇧
/ˌiːɡəʊˈmeɪniæk/
A person who has an excessive interest in or admiration of themselves.
He's such an egomaniac, always talking about his own achievements.
彼は典型的な自己愛者で、いつも自分の達成について語っている。