What term refers to one's opinion about themselves?

The term that refers to one's opinion about themselves is "self-concept." This concept encompasses the beliefs, perceptions, and self-assessments an individual has regarding their identity, strengths, weaknesses, and overall self-image. It is a critical aspect of personal development and influences how someone interacts with others and approaches various situations in life.

In contrast, personality refers more broadly to the combining traits and patterns of thought, feeling, and behavior that make up an individual's unique character, but it does not specifically denote self-opinion. Sympathy involves feelings of pity or sorrow for someone else's misfortune, and tolerance relates to the acceptance of different viewpoints or behaviors without necessarily sharing them. Neither sympathy nor tolerance relates directly to an individual's self-assessment.