A cis woman is a woman whose gender identity corresponds with her sex assigned at birth. In other words, she identifies as a woman and was assigned female at birth. This is in contrast to a trans woman, who identifies as a woman but was assigned male at birth.
Understanding the concept of cis women is important for several reasons. First, it helps to dispel the myth that all women are the same. Cis women come from a variety of backgrounds and experiences, and they have different needs and perspectives. Second, it helps to create a more inclusive society. When we recognize and respect the diversity of women’s experiences, we create a more welcoming and just world for everyone.