add vs take off

add

verb
  • To give by way of increased possession (to someone); to bestow (on). 

  • To append (e.g. a statement); to say further information; to add on. 

  • To summon minions or reinforcements. 

  • To combine elements of (something) into one quantity. 

  • To make an addition; to augment; to increase; to add on. 

  • To join or unite (e.g. one thing to another, or as several particulars) so as to increase the number, augment the quantity, or enlarge the magnitude, or so as to form into one aggregate. 

  • To sum up; to put together mentally; to add up. 

  • To perform the arithmetical operation of addition. 

noun
  • The addition of a song to a station's playlist. 

  • An act or instance of adding. 

  • An additional enemy that joins a fight after the primary target. 

take off

verb
  • To absent oneself from (work or other responsibility), especially with permission. 

  • To depart. 

  • To quantify. 

  • To remove. 

  • To leave the ground and begin flight; to ascend into the air. 

  • To imitate, often in a satirical manner. 

  • To become successful, to flourish. 

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