college vs secondary school

college

noun
  • A high school or secondary school. 

  • A university. 

  • An institution of further education at an intermediate level; sixth form. 

  • A private (non-government) primary or high school. 

  • A government high school, short for junior college. 

  • A group sharing common purposes or goals. 

  • An electoral college. 

  • A specialized division of a university. 

  • A bilingual school. 

  • A residential hall associated with a university, possibly having its own tutors. 

  • An institution for adult education at a basic or intermediate level (teaching those of any age). 

  • A non-specialized, semi-autonomous division of a university, with its own faculty, departments, library, etc. 

  • An institution of higher education teaching undergraduates. 

  • A postsecondary institution that offers vocational training and/or associate's degrees. 

secondary school

noun
  • School with education level between primary school and university. 

  • In the UK and Ireland, a state school attended between the ages of 11 and 16 or 18. 

  • The federally designated, graduation-separated classification of grades 9–12 (approximately ages 14–18), regardless of whether they are compiled together in one school or separate from the other grades. 

  • Middle school; junior high school; a school that one attends between the ages of 12-17 (equivalent of grades 7-10 in North America, and years 7-10 in Australia). 

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