bank holiday vs vac

bank holiday

noun
  • A weekday, often a Monday, on which most businesses are closed, and granted to workers as a national holiday. 

  • A closure of banks in a jurisdiction to curtail or prevent a bank run. 

vac

verb
  • To vacuum; to clean with a vacuum cleaner. 

How often have the words bank holiday and vac occurred in a corpus of books? (source: Google Ngram Viewer )