what is cis short for

Cis is short for cisgender, which refers to when a persons gender identity corresponds to their sex as assigned at birth. The term cisgender comes from the Latin prefix "cis," meaning "on the same side as," and is used to describe people who identify with the gender they were assigned at birth. The term is often used in contrast to transgender, which refers to people whose gender identity does not match the sex they were assigned at birth. The word cis exists to fill a gap that would otherwise exist in language, and that has previously been filled with words like ‘normal’ or ‘regular’, which position trans people as ‘abnormal’ or ‘irregular’ as a result.