A gender neutral title refers to an honorific title that does not indicate the gender of the person being formally addressed, such as in a letter or other communication, or when introducing the person to others. They are a form of gender neutral language. By comparison, the traditional honorifics of Miss, Mrs, Ms and Mr all indicate the binary gender of the individual.
The newer term "Mx" avoids specifying gender not only for persons who wish not to indicate a binary gender (male or female) but also for persons whose gender identity does not fit the gender binary. Honorifics are used in situations when it is inappropriate to refer to someone only by their first or last name, such as when addressing a letter "Dear Mx Jones" or when introducing the person to others. Activists, supporters and others are working toward awareness and acceptance of alternative honorifics including Mx.