blindside vs opposition

blindside

noun
  • A person's weak point. 

  • The blindside flanker, a position in rugby union, usually number 6. 

  • A tram/train driver's field of blindness around a tram (trolley/streetcar) or a train; the side areas behind the tram/train driver. 

  • The space on the side of the pitch with the shorter distance between the breakdown/set piece and the touchline; compare openside. 

  • A driver's field of blindness around an automobile; the side areas behind the driver. 

verb
  • To attack (a person) on his or her blind side. 

  • To catch off guard; to take by surprise. 

opposition

noun
  • An opposite or contrasting position. 

  • The difference of quantity or quality between two propositions having the same subject and predicate. 

  • A political party or movement opposed to the party or government in power. 

  • In United States intellectual property law, a proceeding in which an interested party seeks to prevent the registration of a trademark or patent. 

  • The action of opposing or of being in conflict. 

  • The apparent relative position of two celestial bodies when one is at an angle of 180 degrees from the other as seen from the Earth. 

  • A position in which the player on the move must yield with his king allowing his opponent to advance with his own king. 

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