What is the process called that involves changing genders, potentially including legal and medical measures?

The process of changing genders, which may encompass a variety of legal and medical measures, is termed "transition." This term specifically refers to the steps that individuals take to align their gender identity with their physical appearance and social roles. Transitioning can involve a range of activities, including but not limited to social transitioning (changes in name, pronoun use, clothing, and presentation), medical transitioning (hormone therapy and surgeries), and legal transitioning (updating legal documents to reflect one's gender identity).

In contrast to other options, "transgender" refers to individuals whose gender identity differs from the sex assigned at birth, but it does not imply any specific process or changes that person might undertake. "Transformation" is a broader term that can apply in various contexts and does not specifically relate to gender identity or the transitioning process. "Cross-dressing" describes the act of wearing clothing typically associated with the opposite gender but does not necessarily relate to one's gender identity or the journey of gender transition. Therefore, "transition" accurately captures the process of changing genders.