Somebody who is absent without permission.
Absence without proper authority from the properly appointed place of duty, or from unit, organization, or other place of duty at which one is required to be at the time prescribed.
Someone or something missing.
A person who holds AWOL status.
Absent without official leave (permission).
A person or group that does not show up.
An absence; failure to show up or to make a scheduled appearance, especially at a hotel or a place of employment.
To fail to show up for something.