Wiktionary
a. In the armed forces, being absent from one's post without prior authorization. alt. In the armed forces, being absent from one's post without prior authorization.
Wikipedia
Absent Without Leave is a 1992 New Zealand drama film directed by John Laing. It was entered into the 18th Moscow International Film Festival.
Usage examples of "absent without leave".
It's like Heinrich Boll's book, Absent Without Leave -- stories about German soldiers with the war part missing.
A Templar could not allow a slave to escape, lose his temper and threaten to defect to the Saracens, let a horse wander off, give away any animal except a dog or cat, be absent without leave, break the master’.
A Templar could not allow a slave to escape, lose his temper and threaten to defect to the Saracens, let a horse wander off, give away any animal except a dog or cat, be absent without leave, break the master's seal, go out of the barracks at night, lend the order's money without authorization, or throw his habit on the ground in anger.
TWELFTH NIGHT 579 He has been absent without leave, and he is warned by Maria that he may be discharged.
But these trials were but half of it, for in addition there were a series of tribunals and inquiries for both himself and for the dragons, Bazil and the Purple Green, who had abducted him and gone absent without leave for a month in the year of the invasion.
The captain came on board shortly after, and took no notice of my having been absent without leave.
In the Bulgar army, being absent without leave was evidently a very serious offense.
Since he could not ask OHalloran what he recommended should be done about the officer who had not, in Marine parlance, been at the prescribed place at the prescribed time in the properly appointed uniform and was thus technically absent without leave, General Taylor inquired of Technical Sergeant Saul Cohen, the senior staff NCO of the I & I staff, if he had been able to contact Major Pickering.