|absent without leave|
|military the full form of AWOL|
absent without leave
Away without permission or explanation, as in Her daughter went to the mall but got in trouble for being absent without leave. The term and its acronym, AWOL, originated in the American military during World War I for soldiers absent from duty without permission (leave). It later was transferred to civilian situations, as in John didn't just cut his Tuesday classes; he went AWOL.