contemplation vs omission

contemplation

noun
  • The act of looking forward to a future event 

  • Holy meditation. 

  • The state of being considered or planned. 

  • The act of contemplating; musing; being highly concentrated in thought 

omission

noun
  • Something not done or neglected. 

  • The shortening of a word or phrase, using an apostrophe ( ' ) to replace the missing letters, often used to approximate the sound of speech or a specific dialect. 

  • An instance of those acts, or the thing left out thereby; something deleted or left out. 

  • The act of neglecting to perform an action one has an obligation to do. 

  • The act of omitting. 

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