i Register
In some senses, exeat is marked as dated, obsolete, UK. Watch for register when choosing this word.
noun
A license or permit for absence from a university or a religious house (such as a monastery).
A permission which a bishop grants to a priest to go out of his diocese.
Leave of absence from a public school or college.
[I]t was impossible to imagine her doing anything except eating ice-cream and smoking, like a child on an exeat from school.
A stage direction to leave the stage.