addition vs blockade

addition

noun
  • The act of adding anything. 

  • The arithmetic operation of adding. 

  • A dot at the right side of a note as an indication that its sound is to be lengthened one half. 

  • Anything that is added. 

  • A title annexed to a person's name to identify him or her more precisely. 

  • Something added to a coat of arms, as a mark of honour. 

blockade

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. 

verb
  • To create a blockade against. 

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