sor
sister
sorority
a social organization for female students in a college or university
Sor means sister (in a religious context) and is related to the English word sorority0, which refers to a sisterhood in a college setting.
noun
  1. sister
    A title used for nuns, equivalent to 'Sister' in English
    Sor María es la directora del convento. // Sister María is the director of the convent.