burp vs foam

burp

verb
  • To utter by burping 

  • To cause someone (such as a baby) to burp. 

  • To open (a container of fermenting substance) to allow the release of accumulated gas. 

  • To emit a burp. 

noun
  • A belch. 

foam

verb
  • To spew saliva as foam; to foam at the mouth. 

  • To form or emit foam. 

  • To coat or cover with foam. 

noun
  • A collection of small bubbles created when the surface of a body of water is moved by tides, wind, etc. 

  • A substance composed of a large collection of bubbles or their solidified remains, especially 

  • Fury. 

  • A material formed by trapping pockets of gas in a liquid or solid. 

  • A collection of small bubbles on the surface of a liquid that is heated, fermented or carbonated. 

  • A collection of small bubbles created by mixing soap with water. 

  • A collection of small bubbles formed by mixing an extinguishing agent with water, used to cover and extinguish fires. 

  • A collection of small bubbles formed from bodily fluids such as saliva or sweat. 

  • The sea. 

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