IPA: /ˌiːɡoʊˈmeɪniə/
KK: /ˌiːɡoʊˈmeɪniə/
An excessive focus on oneself, often leading to an inflated sense of self-importance and a lack of consideration for others.
His egomania made it difficult for him to maintain friendships, as he only cared about his own needs.
Egomania is formed from "ego" (from Latin, meaning I or self) and "mania" (from Greek "mania", meaning madness or obsession). The word describes an obsession with oneself or an excessive preoccupation with one's own interests and needs.
Think of 'ego' meaning self and 'mania' meaning obsession — this helps you remember that egomania refers to an obsession with oneself.