hide vs specialize

hide

verb
  • To put (something) in a place where it will be harder to discover or out of sight. 

  • To put oneself in a place where one will be harder to find or out of sight. 

  • To beat with a whip made from hide. 

noun
  • A secret room for hiding oneself or valuables; a hideaway. 

  • The skin of an animal. 

  • (mainly British) A covered structure from which hunters, birdwatchers, etc can observe animals without scaring them. 

  • One's own life or personal safety, especially when in peril. 

  • A covered structure to which a pet animal can retreat, as is recommended for snakes. 

  • A unit of land and tax assessment of varying size, originally as intended to support one household with dependents. 

specialize

verb
  • To become distinct or separate from what is common 

  • To focus one's study upon a particular skill, field, topic, or genre. 

  • To make distinct or separate due to form or function. 

  • To narrow in scope. 

  • To be known or notorious for some specialty. 

  • To specify: to mention specifically. 

  • To focus one's business upon a particular item or service. 

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