juvenile vs tweenie

juvenile

noun
  • A person younger than the age of majority; a minor. 

  • A person younger than the age of full criminal responsibility, such that the person either cannot be held criminally liable or is subject to less severe forms of punishment. 

  • A sexually immature animal. 

  • A prepubescent child. 

  • A publication for young adult readers. 

  • A two-year-old racehorse. 

  • An actor playing a child's role. 

adj
  • Characteristic of youth or immaturity; childish. 

  • Young; not fully developed. 

tweenie

noun
  • A child who is not quite old enough to be a teenager; a tweenager. 

  • A shot that is hit between the legs; a tweener. 

  • A 650-watt fresnel motion picture lighting instrument first manufactured by the Mole-Richardson Company. 

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