burp vs sniff

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. 

sniff

verb
  • To say (something) while sniffing, such as in case of illness or unhappiness, or in contempt. 

  • To perceive vaguely. 

  • To make a short, audible inhalation, through the nose, as when smelling something. 

  • To inhale drugs (usually cocaine) through the nose, usually in powder form. 

  • To pry; to investigate in an interfering manner. 

  • To intercept and analyse packets of data being transmitted over a network. 

  • To be dismissive or contemptuous of something. 

intj
  • A short inhalation sound, sometimes associated with crying. 

noun
  • A brief perception, or tiny amount. 

  • An instance of sniffing. 

  • Cocaine. 

  • A quantity of something that is inhaled through the nose. 

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