examine vs tune out

examine

verb
  • to interrogate 

  • to determine the aptitude, skills or qualifications of someone by subjecting them to an examination 

  • to observe or inspect carefully or critically 

  • to check the health or condition of something or someone 

tune out

verb
  • To stop paying attention to; to ignore; to zone out. 

  • To change the channel or frequency away from. 

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