AFAB stands for Assigned Female at Birth and can include: cisgender women, transgender men, and non-binary people. 

Literally "genderless", this term refers to people who do not identify with any gender.

AMAB stands for Assigned Male at Birth and can include: cisgender men, transgender women, non-binary people.

Person who has no desire to have sex, who is not sexually attracted to other people. Contrary to what might be thought, this does not mean that asexual people do not enjoy sexuality. It is possible to experience sexual pleasure also in the absence of sexual desire.

By law, at birth, every person is assigned a sex (male / female) based on the appearance of the external genitalia.