What is "cisgender"

a. (context LGBT of a person English) Having a gender that matches one's binary natal sex, e.g. being both male-gendered and male-assigned.

Cisgender (often abbreviated to simply cis) is a term for people who have a gender identity that matches their assigned sex. Cisgender may also be defined as those who have "a gender identity or perform a gender role society considers appropriate for one's sex." It is the opposite of the term transgender.

There are two versions of the term: cis male for "male assigned male at birth" or cis female for "female assigned female at birth". Further derivations analogously include "cis man" and "cis woman", as well as cissexism (or "cissexual assumption" or "cisnormativity").