barricade vs liberate

barricade

verb
  • to close or block a road etc., using a barricade 

  • to keep someone in (or out), using a blockade, especially ships in a port 

noun
  • A barrier constructed across a road, especially as a military defence 

  • An obstacle, barrier, or bulwark. 

  • A place of confrontation. 

liberate

verb
  • To release from chemical bonds or solutions. 

  • To acquire from an enemy during wartime, used especially of cities, regions, and other population centers. 

  • To release from servitude or unjust rule. 

  • To release from slavery: to manumit. 

  • To release from restraint or inhibition. 

  • To acquire from another by theft or force: to steal, to rob. 

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