A cis woman is a woman whose gender identity aligns with the sex assigned to her at birth. In other words, she identifies as a woman and was assigned female at birth. This is in contrast to a transgender woman, who identifies as a woman but was assigned male at birth.
Cis women make up the majority of the female population, and they have historically been the beneficiaries of sexism and misogyny. However, in recent years, there has been a growing movement to recognize and address the unique challenges that cis women face. This includes issues such as sexism, sexual harassment, and reproductive rights.