At American University, there is ”ey,” one of a number of pronoun options published in a guide for students (along with information about how to ask which one to use).

There’s also “hir,” “xe” and “hen,” which has been adopted by Sweden (a joining of the masculine han and the feminine hon); “ve,” and “ne,” and “per,” for person, “thon,” (a blend of “that” and “one”); and the honorific “Mx.” (pronounced “mix”) — an alternative to Ms. and Mr. that was recently added to the Oxford English Dictionary. (The “x” in Mx. is meant to represent an unknown, similar to the use of x in algebraic equations.)

Those are just the pronouns, of course.

To use them, you need to have at least some knowledge of the identities to which they correspond — beginning with an understanding of the word “identity,” along with its sister verb, “identify” (as in: “I identify as female” or “I identify as mixed-race”).