big box vs conservatory

big box

noun
  • A large self-service store, usually on a single level, with few interior walls, owned and run by a corporation 

conservatory

noun
  • A storehouse. 

  • A school of music or drama 

  • A large greenhouse or hothouse for the display of plants 

  • A glass-walled and -roofed room in a house 

adj
  • Relating to conservation. 

  • Having the quality of preserving from loss, decay, or injury. 

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