Gender identity
'Transgender' is both an identity label and an umbrella term. A person can identify as a trans woman or trans man, but there are more genders that fall underneath the transgender category. Nonbinary genders (or people who do not identify as male or female) may fall underneath transgender, depending on how the person self-identifies. 'Nonbinary' may be used as a synonym for agender, or someone doesn't identify with a gender, but also may refer to other genders.