compartment vs subsection

compartment

noun
  • One of the parts into which an area is subdivided. 

  • Part of a protein that serves a specific function. 

  • A room, or section, or chamber 

  • A mound (often of grass) beneath the shield in a coat of arms on which the supporters stand. 

  • A region in the body, delimited by a biological membrane. 

verb
  • To arrange in separate compartments. 

subsection

noun
  • A defined part of a section. 

  • An informal taxonomic category below section and above family. 

  • A subpart of a legal document such as law. 

  • A taxonomic rank below the section, but above the species. 

verb
  • To insert subsections (into some text, etc.). 

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