absence without leave vs no-show

absence without leave

noun
  • The military offense of not being present when expected without proper authority. 

no-show

noun
  • An absence; failure to show up or to make a scheduled appearance, especially at a hotel or a place of employment. 

  • A person or group that does not show up. 

verb
  • To fail to show up for something. 

How often have the words absence without leave and no-show occurred in a corpus of books? (source: Google Ngram Viewer )