engineering vs involvement

engineering

noun
  • Actions controling the motion, shape, and/or substance of any physical object(s). 

  • The application of mathematics and the physical sciences to the needs of humanity and the development of technology. 

  • Designates office area of the professional engineering staff. 

  • The area aboard a ship where the engine is located. 

involvement

noun
  • The act of involving, or the state of being involved. 

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