An allosexual person is somebody who experiences sexual attraction toward others. The term is used to describe the opposite of asexuality. Allosexuals are people who tend to actively seek out sexual partners or feel the need for sex to have a fulfilled life.

An asexual person is somebody who either experiences no sexual attraction, little sexual attraction, or sexual attraction under very specific circumstances. An asexual person can still pursue romantic partners without seeking sex. Asexual people can still have sex drives and sexual fantasies. The asexual spectrum includes sex-repulsed asexual people (who get no pleasure from sex), grey asexual people (people who experience sexual attraction only with a significant romantic or emotional investment in a person), and many other subidentities. A person who is asexual may still refer to themselves as gay, lesbian, or so forth based on their romantic desires.

This is the gender marker that appears on one’s birth certificate, usually determined by an examination of an infant’s genitals by a medical professional when the child is born. This usually determines the gender, social roles, and expectations one is raised with. The term is usually used as AFAB or AMAB when discussing one of the two possibilities assigned to children, meaning Assigned Female at Birth and Assigned Male at Birth.