retract vs tip

retract

verb
  • To decline or fail to do something promised; to break one's word. 

  • To avert (one's eyes or a gaze). 

  • To pull (something) back or back inside. 

  • Of something said or written (such as published academic work): to take back or withdraw. 

  • To draw (an extended body part) back into the body. 

  • To take back or withdraw (something that has been said or written); to disavow, to repudiate. 

  • Originally in chess and now in other games as well: to take back or undo (a move); specifically (card games) to take back or withdraw (a card which has been played). 

  • To break or fail to keep (a promise, etc.); to renege. 

  • To draw back; to draw up; to withdraw. 

  • To pronounce (a sound, especially a vowel) farther to the back of the vocal tract. 

  • To cancel or take back (something, such as an edict or a favour or grant previously bestowed); to rescind, to revoke. 

tip

verb
  • To dump (refuse). 

  • (To cause) to be, or come to be, in a tilted or sloping position; (to cause) to become unbalanced. 

  • To provide with a tip; to cover the tip of. 

  • To cause the contents of a container to be emptied out by tilting it. 

  • To give a small gratuity to, especially to an employee of someone who provides a service. 

  • To predict or bet on something having a particular outcome. 

  • (To cause) to become knocked over, fall down or overturn. 

  • To deflect with one′s fingers, especially one′s fingertips. 

  • To give a piece of private information to; to inform (someone) of a clue, secret knowledge, etc. 

  • To pour a libation or a liquid from a container, particularly from a forty of malt liquor. 

  • To give, pass. 

noun
  • Synonym of eartip (“part of earbuds”) 

  • A thin, boarded brush made of camel's hair, used by gilders in lifting gold leaf. 

  • A small piece of meat. 

  • A gratuity; a small amount of money left for a bartender, waiter, taxi driver or other servant as a token of appreciation. 

  • A recycling centre. 

  • A piece of advice. 

  • Rubbish thrown from a quarry. 

  • The end of a bow of a stringed instrument that is not held. 

  • A very untidy place. 

  • A piece of metal, fabric or other material used to cover the top of something for protection, utility or decoration. 

  • The act of deflecting with one's fingers, especially the fingertips 

  • An area or a place for dumping something, such as rubbish or refuse, as from a mine; a heap (see tipple); a dump. 

  • A piece of stiffened lining pasted on the inside of a hat crown. 

  • An act of tipping up or tilting. 

  • A kick or phase; one's current habits or behaviour. 

  • A tram for expeditiously transferring coal. 

  • A particular arena or sphere of interest; a front. 

  • The extreme end of something, especially when pointed; e.g. the sharp end of a pencil. 

  • A piece of private or secret information, especially imparted by someone with expert knowledge about sporting odds, business performance etc. 

  • A prediction or bet about the outcome of something. 

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