annulment vs approval

annulment

noun
  • A legal (notably judicial) declaration that a marriage is invalid; the procedure leading to it. 

  • An act or instance of annulling. 

  • An invalidation of something, especially a legal contract. 

  • The state of having been annulled. 

approval

noun
  • Something mailed by a seller to a collector to match their stated interests; the collector can approve of or return the item. 

  • An expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing, or event meets requirements. 

  • An expression of favorable acceptance and encouragement; a compliment that also condones. 

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