academic institution vs collegiate

academic institution

noun

  • An educational institution, dedicated to teaching and/or research. 

  • An educational institution, dedicated to higher education and research, that grants academic degrees. 

collegiate

noun

  • A high school. 

  • An inmate of a prison. 

adj

  • Collegial. 

  • Of, or relating to a college, or college students. 

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