blockade vs checkpoint

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. 

checkpoint

verb
  • To set a checkpoint. 

noun
  • A predetermined point in a map, level or scenario that the player may resume from if they die or restart from if they choose to. 

  • A point or place where a check is performed, especially a point along a road or on a frontier where travellers are stopped for inspection 

  • A situation, often represented by a point in time, at which the state of a database system is known to be valid, and to which it can be returned in the event of a crisis by using a combination of backups and logs; the data stored at this event. 

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