alfresco vs indoors

alfresco

adj
  • Outdoors, open to the atmosphere. 

adv
  • Outdoors; in fresh air. 

  • Onto fresh plaster that is still moist. 

indoors

adv
  • Inside, into, or within a building. 

noun
  • The interior of a building; the space inside buildings generally. 

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