junction vs metro

junction

noun
  • A place where two or more railways or railroads meet. 

  • A point in time between two unrelated consecutive broadcasts. 

  • A place where two things meet, especially where two roads meet. 

  • The boundary between two physically different materials, especially between conductors, semiconductors, or metals. 

  • The act of joining, or the state of being joined. 

  • The place where a distributary departs from the main stream. 

  • In the Raku programming language, a construct representing a composite of several values connected by an operator. 

  • electrical junction: a point or area where multiple conductors or semiconductors make physical contact. 

  • A kind of symbolic link to a directory. 

verb
  • To form a junction. 

metro

noun
  • A rapid transit rail transport system, or a train in such systems, generally underground and serving a metropolitan area. 

  • An urban rapid transit rail transport system, normally with lighter track and light trains (i.e. an S-Bahn or similar), or a train in such systems. 

  • A metropolitan area. 

adj
  • metropolitan 

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