Final answer:
If a person's gender identity matches the sex they were assigned at birth, they are referred to as cisgender. The term cisgender does not denote sexual orientation, and belongs to a social norm called cisnormativity, which overlooks non-cisgender identities such as transgender.
Step-by-step explanation:
If the gender identity is congruent with the sex assigned at birth, the person is considered cisgender. This means that their gender identity aligns with the gender they were assigned when they were born. Utilizing the Latin prefix "cis," which means "on the same side," the term cisgender contrasts with "trans," meaning "across." Therefore, individuals who are not cisgender and do not identify with the sex assigned at birth are known as transgender.
It is important to note that the term cisgender does not indicate a person's sexual orientation, gender, or gender expression. The social norm that presumes everyone is cisgender is referred to as cisnormativity. This presumption often overlooks the presence and experiences of transgender individuals in society. Transgender is an umbrella term that includes people whose gender identity, expression, or behavior differs from those typically associated with their sex assigned at birth.