air conditioner vs bustle

air conditioner

noun
  • A machine that is used to control temperature and humidity in an enclosed space. 

bustle

noun
  • A cover to protect and hide the back panel of a computer or other office machine. 

  • An excited activity; a stir. 

  • A frame worn underneath a woman's skirt, typically only protruding from the rear as opposed to the earlier more circular hoops. 

verb
  • To move busily and energetically with fussiness (often followed by about). 

  • To teem or abound (usually followed by with); to exhibit an energetic and active abundance (of a thing). 

  • To push around, to importune. 

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