lieutenant junior grade vs logo

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. 

logo

noun
  • An ensign, a badge of office, rank, or power. 

  • An audio recording for the same purpose; a jingle. 

  • A visual symbol or emblem that acts as a trademark or a means of identification of a company or organization. 

  • A single graphic which contains one or more separate elements. 

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