growth vs regression

growth

noun
  • An abnormal mass such as a tumor. 

  • An increase in psychological strength or resilience; an increased ability to overcome adversity. 

  • The act of growing, getting bigger or higher. 

  • An increase in size, number, value, or strength. 

  • Something that grows or has grown. 

regression

noun
  • The diminishing of a cellular mass like a tumor, or of an organ size. 

  • An analytic method to measure the association of one or more independent variables with a dependent variable. 

  • The reappearance of a bug in a piece of software that had previously been fixed. 

  • An equation using specified and associated data for two or more variables such that one variable can be estimated from the remaining variable(s). 

  • The making an exercise less straining to perform by manipulating the details of its performance like loaded weight, range of motion, angle, speed. 

  • A psychotherapeutic method whereby healing is facilitated by inducing the patient to act out behaviour typical of an earlier developmental stage. 

  • An action of travelling mentally back in time. 

  • An action of regressing, a return to a previous state. 

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