focus vs follow

focus

verb
  • To concentrate one’s attention. 

  • To adjust (a lens, an optical instrument) in order to position an image with respect to the focal plane. 

  • To transfer the input focus to (a visual element), so that it receives subsequent input. 

  • To direct attention, effort, or energy to a particular audience or task. 

  • To concentrate during a task. 

  • To cause (rays of light, etc) to converge at a single point. 

  • To aggregate figures of accounts. 

noun
  • The fact of the convergence of light on the photographic medium. 

  • A point of a conic at which rays reflected from a curve or surface converge. 

  • The most important word or phrase in a sentence or passage, or the one that imparts information. 

  • The quality of the convergence of light on the photographic medium. 

  • A point at which reflected or refracted rays of light converge. 

  • The exact point of where an earthquake occurs, in three dimensions (underneath the epicentre). 

  • The status of being the currently active element in a user interface, often indicated by a visual highlight. 

  • Concentration of attention. 

  • An object used in casting a magic spell. 

follow

verb
  • To understand, to pay attention to. 

  • To walk in, as a road or course; to attend upon closely, as a profession or calling. 

  • To subscribe to see content from an account on a social media platform. 

  • To live one's life according to (religion, teachings, etc). 

  • To carry out (orders, instructions, etc.). 

  • To be a logical consequence of something. 

  • To watch, to keep track of (reports of) some event or person. 

  • To go or come after in a sequence. 

  • To go after; to pursue; to move behind in the same path or direction, especially with the intent of catching. 

noun
  • In billiards and similar games, a stroke causing a ball to follow another ball after hitting it. 

  • The act of following another user's online activity. 

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