There have always been transgender people who felt that their gender identity didn’t fall neatly into the two binary categories of “man” or “woman.” In the past, trans people who felt that way used the words genderqueer and genderfluid to describe that experience. While those words are still used today, it’s now more common for people to call themselves non-binary if they feel their gender identity is something other than “man” or “woman.” People who use the word non-binary to describe their gender identity typically also call themselves transgender.