kettle vs urn

kettle

noun
  • A kettledrum. 

  • An instance of kettling; a group of protesters or rioters confined in a limited area. 

  • A vessel or appliance used to boil water for the preparation of hot beverages and other foodstuffs. 

  • A vessel for boiling a liquid or cooking food, usually metal and equipped with a lid. 

  • A kettle hole, sometimes any pothole. 

  • The quantity held by a kettle. 

  • A group of raptors riding a thermal, especially when migrating. 

  • A steam locomotive 

verb
  • To contain demonstrators in a confined area. 

  • Of a boiler: to make a whistling sound like the boiling of a kettle, indicative of various types of fault. 

urn

noun
  • A metal vessel for serving tea or coffee. 

  • A vase with a footed base. 

  • A vessel for the ashes or cremains of a deceased person. 

  • Any place of burial; the grave. 

  • A hollow body shaped like an urn, in which the spores of mosses are contained; a spore case; a theca. 

  • A measure of capacity for liquids, containing about three gallons and a half, wine measure. It was half the amphora, and four times the congius. 

verb
  • To place in an urn. 

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