yand

Example:She suffers from delusions of grandeur, believing she is a genius in her field.

Definition:A false belief held with strong conviction despite a lack of evidence or contrary evidence.

Example:His ego trip made him act like the most important person in the room.

Definition:An intense feeling of self-importance or self-satisfaction.

Example:The leader's self-aggrandizement alienated the rest of the team.

Definition:The act of making oneself appear more important or powerful than is objective.