The term co-ed is short for co-education, which is a term that was coined when women were allowed to attend school with men. The term co-education is considered outdated by many and has been replaced with the terms mixed-education or mixed-gender education in many places. 

Mixed is already a term that has a long history of being used by professional sporting bodies to describe formats that include men and women. In tennis, there are mixed doubles. In Ultimate, the Canadian organization splits its top divisions into Open, Women’s, and Mixed.

We believe that the term Mixed-Gender is more inclusive for people whose gender identities don’t fall into the man/woman binary construct.