muzzle vs no-platform

muzzle

verb
  • To restrain (from speaking, expressing opinion or acting); to gag; to silence; to censor. 

  • To bind or confine an animal's mouth by putting a muzzle, as to prevent it from eating or biting. 

  • To bring the muzzle or mouth near. 

noun
  • The protruding part of an animal's head which includes the nose, mouth and jaws. 

  • The mouth or the end for entrance or discharge of a gun, pistol etc., that the bullet emerges from. 

  • A piece of the forward end of the plow-beam by which the traces are attached. 

  • A device used to prevent an animal from biting or eating, which is worn on its snout. 

  • A person's mouth. 

no-platform

verb
  • To deny (a person or organisation) the use of platforms (newspaper columns, speaking engagements, etc) to publish their opinions, etc. 

How often have the words muzzle and no-platform occurred in a corpus of books? (source: Google Ngram Viewer )