addition vs boost

addition

noun
  • Anything that is added. 

  • 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. 

  • 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. 

boost

noun
  • Something that helps, or adds power or effectiveness; assistance. 

  • A positive intake manifold pressure in cars with turbochargers or superchargers. 

  • A coordinate transformation that changes velocity. 

  • A push from behind, as to one who is endeavoring to climb. 

verb
  • To lift or push from behind (one who is endeavoring to climb); to push up. 

  • To steal. 

  • To give a booster shot to. 

  • To help or encourage (something) to increase or improve; to assist in overcoming obstacles. 

  • To amplify; to signal boost. 

  • To jump-start a vehicle by using cables to connect the battery in a running vehicle to the battery in a vehicle that won't start. 

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