bath vs washbasin

bath

noun
  • The body of liquid one bathes in. 

  • A substance or preparation in which something is immersed. 

  • A tub or pool which is used for bathing: bathtub. 

  • The act of bathing. 

  • A former Hebrew unit of liquid volume (about 23 L or 6 gallons). 

  • A building or area where bathing occurs. 

verb
  • To wash a person or animal in a bath. 

  • To bathe (oneself); to have a bath. 

washbasin

noun
  • A basin used for washing, (now) particularly a permanently installed sink, fitted with a water supply and a drain, for washing the hands and face. 

  • A laundry sink. 

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