promote vs squelch

promote

verb
  • To encourage, urge or incite. 

  • To increase the activity of (a catalyst) by changing its surface structure. 

  • To elevate to a higher league. 

  • To raise (someone) to a more important, responsible, or remunerative job or rank. 

  • To move on to a subsequent stage of education. 

  • To advocate or urge on behalf of (something or someone); to attempt to popularize or sell by means of advertising or publicity. 

  • To exchange (a pawn) for a queen or other piece when it reaches the eighth rank. 

squelch

verb
  • To halt, stop, eliminate, stamp out, or put down, often suddenly or by force. 

  • To suppress the unwanted hiss or static between received transmissions by adjusting a threshold level for signal strength. 

  • To make a sucking, splashing noise as when walking on muddy ground. 

  • To walk or step through a substance such as mud. 

noun
  • A squelching sound. 

  • A kind of electronic beat or sound mainly used in acid house and related music genres. 

  • The suppression of the unwanted hiss or static between received transmissions by adjusting the gain of the receiver. 

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