A cisgender woman is a person who was assigned female at birth and identifies as a woman. In other words, their gender identity matches the sex they were assigned at birth. Most people who are assigned female at birth identify as girls or women, and most people who are assigned male at birth identify as boys or men. These people are cisgender (or cis). It is important to note that being cisgender is not the same as being heterosexual, as a cisgender person can experience sexual and romantic attractions to all, some, or no genders.