detergent vs vacuum cleaner

detergent

noun
  • Any non-soap cleaning agent, especially a synthetic surfactant. 

adj
  • Synonym of cleansing. 

vacuum cleaner

noun
  • A domestic or industrial mobile machine for cleaning floors and similar surfaces that draws dust and other particles into a container (a cyclonic type bin, or a filter bag) by the suction created by an electric motor driving a fan. 

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