Table 1:

Definitions of gender categories

Terminology	Definition
Cis gender	People whose gender identity matches their sex assigned at birth
Transgender male (female to male)	A person who was assigned female at birth, but identifies as a man or on the masculine spectrum
Transgender female (male to female)	A person who was assigned male at birth, but identifies as a woman or on the feminine spectrum
Gender nonconforming, genderqueer	A person whose gender identity differs from that which was assigned at birth, but may be more complex, fluid, multifaceted, or less clearly defined than a transgender person
Nonbinary	Transgender or gender nonconforming person who identifies as neither male nor female.
Transitioning	A person’s process of developing and assuming a gender expression to match their gender identity.
Transsexual	A clinical term previously used to describe those transgender people who sought medical intervention

From Kuper LE, Nussbaum R, Mustanski B. Exploring the diversity of gender and sexual orientation identities in an online sample of transgender individuals. J Sex Res 2012;49(2–3):244–254; with permission.