Exeat
A furlough (vacation or leave of absence granted to an enlisted person) is called 'une permission' in French. To be on such a leave would be "être en permission, partir en permission".
The absence of sound is called silence.Quiet or quietness is also the absence of sound.
boarding
the absence of air is "vacuum"
I don't think there is anything called week boarding you might be mistaken by wakeboarding.
Asepsis means the absence of pathogens
The absence of snow is called "snow-free" or "snowless."
dorms
NO they were never called that.
Roald Dahl attended Repton School in Derbyshire, England for his boarding school education.
It is called Amenorrhea. A-absence of, without. Men/o- menstruation. rrhea- flow, discharge.
In the absence of credible evidence, the judge dropped the case. Due to the absence of the teacher, a substitute was called.