Humanities › Issues Definition of Cis Man The Difference Between Cisgender and Transgender Share Flipboard Email Print RoBeDeRo / Getty Images Issues Civil Liberties Gun Laws Equal Rights Freedoms The U. S. Government U.S. Foreign Policy U.S. Liberal Politics U.S. Conservative Politics Women's Issues The Middle East Terrorism Race Relations Immigration Crime & Punishment Animal Rights Canadian Government View More By Tom Head Civil Liberties Expert Ph.D., Religion and Society, Edith Cowan University M.A., Humanities, California State University - Dominguez Hills B.A., Liberal Arts, Excelsior College Tom Head, Ph.D., is a historian specializing in the history of ethics, religion, and ideas. He has authored or co-authored 29 nonfiction books, including "Civil Liberties: A Beginner's Guide." our editorial process Tom Head Updated November 16, 2020 A cis man, shorthand for "cisgender man," is a non-trans man—a man whose assigned sex at birth is male, and whose gender identity aligns with that typically culturally associated with his sex. This distinguishes him from trans men, shorthand for "transgender men"—men who were initially assigned a female sex at birth, but exist as men. If you identify as a man but are not a transgender man, you're a cis man. Cisgender and transgender identity are grounded in gender roles, but because gender roles are socially constructed and gender is not a very clearly defined concept, gender is a spectrum. Cisgender and transgender are relative terms representing individual experiences of what gender is. As Ashley Fortenberry, a trans woman, explains: "Gender cannot be defined by anyone other than the individual." Pronunciation: "siss-man" Also Known As: cisgender man, cis guy Offensive: "natural-born man," "real man"