somebody who doesn’t identify within the gender binary and sometimes uses they/them pronouns

Someone who identifies as something other than a binary gender. The binary genders being male and female.

Usually under the genderqueer or transgender umbrellas. when someone's sense of gender is not male, female, or something in-between (androgynous). Includes neutrois, agender, genderless, gender-neutral, and other senses of gender devoid of male or female aspects.

To not be referred to as a Male or a Female (you don't have a gender).

Someone who doesn't identify as male or female. This doesn't mean they change their femininity or masculinity, it just means they feel uncomfortable about their gender and don't feel like any other gender is their gender. They mostly use they/them pronouns, but some people go by pronouns they make. Their pride flag has yellow at the top, white underneath, purple below that, and black at the bottom.

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Somebody who does not identify as male of female.

They will usually have the pronouns they/them.