banquette vs prom

banquette

noun
  • A sidewalk. 

  • An upholstered bench, e.g., along a wall of a restaurant or lounge area. 

  • A narrow area behind a defensive wall's parapet elevated above its terreplein and used by defenders to shoot at attackers. 

  • A bench built into a wall, especially (military) one built into a wall of a defensive trench, used for sitting and for shooting at attackers. 

prom

noun
  • A promenade. 

  • A formal ball held at a high school or college on special occasions; e.g,. near the end of the academic year. 

  • A promenade concert. 

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