teakettle vs waterpot

teakettle

noun
  • A vessel used to boil water for tea or other hot beverages. 

verb
  • To make a shrill sound like a boiling teakettle. 

waterpot

noun
  • A pot or jug for holding water. 

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