The term 'absent without ___' can be completed with two words: AWOL and LEAVE. AWOL stands for 'Absent Without Official LEAVE' and is a military term used to describe a soldier who has left their post without permission or authorization. LEAVE is a more general term that can refer to any kind of absence from a job or other obligation, such as taking a vacation or sick LEAVE. Both terms are used to describe someone who is not present at their place of work or duty.