lock out vs permit

lock out

verb
  • To prevent from accessing a data structure. 

  • To inadvertently prevent (a person, particularly oneself) from entering a place, by leaving it locked. 

noun
  • An event in which an employer bars employees from working as a tactic in negotiating terms of employment, particularly in response to a strike or threat to strike. 

permit

noun
  • A pompano of the species Trachinotus falcatus. 

  • An artifact or document rendering something allowed or legal. 

  • A learner's permit. 

verb
  • To allow (something) to happen, to give permission for. 

  • To allow for, to make something possible. 

  • To allow, to admit (of). 

  • To grant formal authorization for (something). 

  • To attempt to obtain or succeed in obtaining formal authorization for (something). 

  • To allow (someone) to do something; to give permission to. 

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