Gender identity refers to an individual's deeply held sense of their gender, which may or may not align with the sex assigned to them at birth. It goes beyond biological or physical characteristics and is an important aspect of a person's self-perception and how they relate to society.
Example
A person assigned female at birth who identifies and lives as a man has a gender identity that is male. Respect for gender identity involves acknowledging and using the individual's preferred pronouns and treating them according to their affirmed gender.