senior vs superordinate

senior

adj
  • Higher in rank, dignity, or office. 

  • Older; superior 

  • Of or pertaining to a student's final academic year at a high school (twelfth grade) or university. 

noun
  • Somebody who is higher in rank, dignity, or office. 

  • A final-year student at a high school or university. 

  • Someone seen as deserving respect or reverence because of their age. 

  • An old person. 

  • Someone older than someone else (with possessive). 

superordinate

adj
  • Greater in degree, rank or position. 

  • The relation of a universal proposition to a specific proposition of the same form with the universal quantified variable replaced by a specific instance. 

  • hypernymic 

noun
  • That which is superordinate. 

  • A hypernym. 

verb
  • To cause to be superordinate. 

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