notice vs onlook

notice

noun
  • The act of observing; perception. 

  • A published critical review of a play or the like. 

  • A written or printed announcement. 

  • Advance notification of termination of employment, given by an employer to an employee or vice versa. 

  • A formal notification or warning. 

  • Prior notification. 

verb
  • To be noticeable; to show. 

  • To become aware of; to observe. 

onlook

noun
  • The act of looking on (something); observation. 

  • One's perspective or outlook. 

  • That which is looked at, regarded, or considered. 

verb
  • To look on or look at; watch; observe; view; regard. 

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