lastborn vs teen

lastborn

adj
  • Younger than anyone else in a group. 

  • Born last in a family; youngest in a the family. 

noun
  • The youngest child of a family. 

  • The youngest member of any company or organization. 

teen

adj
  • Of or having to do with teenagers; teenage 

noun
  • Vexation; anger; hate. 

  • Synonym of teenager: a person between 13 and 19 years old. 

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