dishwasher vs vacuum

dishwasher

noun
  • A machine for washing dishes. 

  • A European bird, the wagtail. 

  • Someone who washes dishes, especially one hired to wash dishes in a restaurant. 

  • A bird, the restless flycatcher (Myiagra inquieta). 

vacuum

noun
  • A vacuum cleaner. 

  • The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, such as the condenser of a steam engine, which is nearly exhausted of air or steam, etc. 

  • An emptiness in life created by a loss of a person who was close, or of an occupation. 

  • An exercise in which one draws their abdomen towards the spine. 

  • A region of space that contains no matter. 

  • A spacetime having tensors of zero magnitude. 

verb
  • To optimise a database or database table by physically removing deleted tuples. 

  • To clean (something) with a vacuum cleaner. 

  • To use a vacuum cleaner. 

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