lieutenant junior grade vs subordinate

lieutenant junior grade

noun
  • A commissioned officer of the United States Navy whose rank is above an ensign's and below a lieutenant, or a corresponding rank in other navies. 

  • A commissioned officer in the United States Coast Guard, Public Health Service, or National Atmospheric and Oceanic Administration whose rank is above an ensign and below a lieutenant. 

subordinate

noun
  • One who is subordinate. 

adj
  • Descending in a regular series. 

  • Placed in a lower class, rank, or position. 

  • dependent on and either modifying or complementing the main clause 

  • Submissive or inferior to, or controlled by authority. 

verb
  • To make subservient. 

  • To treat as of less value or importance. 

  • To make of lower priority in order of payment in bankruptcy. 

How often have the words lieutenant junior grade and subordinate occurred in a corpus of books? (source: Google Ngram Viewer )