blockade vs quarantine

blockade

verb
  • To create a blockade against. 

noun
  • The ships or other forces used to effect a naval blockade. 

  • Inhibition of the activity (function) of chemical messengers or their receptors, such as (often) receptor antagonism. 

  • The physical blocking or surrounding of a place, especially a port, in order to prevent commerce and traffic in or out. 

  • Any form of formal isolation or inhibition of something, especially with the force of law or arms. 

  • Preventing an opponent's pawn moving by placing a piece in front of it. 

quarantine

verb
  • Synonym of restrict. 

  • To place into isolation to prevent the spread of any contagious disease. 

  • To enter or stay in quarantine, particularly to self-quarantine to avoid an epidemic disease. 

  • Synonym of isolate more generally. 

noun
  • A 40-day period formerly imposed by the French king upon warring nobles during which they were forbidden from exacting revenge or continuing to fight. 

  • An isolation of one program, drive, computer, etc. from the rest of a computer network to limit the damage from a bug, computer virus, etc.. 

  • A blockade of trade, suspension of diplomatic relations, or other action whereby one country seeks to isolate another. 

  • The 40-day period during which a widow is entitled to remain in her deceased husband's home while any dower is collected and returned. 

  • The program, drive, computer, etc. thus isolated. 

  • A similar period, instance, or state of rigidly enforced or self-enforced detention or isolation. 

  • A period, instance, or state of isolation from the general public or from native livestock and flora enacted to prevent the spread of any contagious disease. 

  • A period of 40 days, particularly 

  • The 40-day period of isolation required after 1448 at Venice's lazaret to avoid renewed outbreaks of the bubonic plague and identical policies in other locations. 

  • A place where such isolation is enforced, a lazaret. 

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