concourse vs lobby

concourse

noun
  • A large open space in or in front of a building where people can gather, particularly one joining various paths, as in a rail station or airport terminal, or providing access to and linking the platforms in a railway terminus. 

  • The running or flowing together of things; the meeting of things; confluence. 

  • An open space, especially in a park, where several roads or paths meet. 

  • Airport terminal. 

  • A large group of people; a crowd. 

lobby

noun
  • An entryway or reception area; vestibule; passageway; corridor. 

  • A margin along either side of the playing field in the sport of kabaddi. 

  • That part of a hall of legislation not appropriated to the official use of the assembly. 

  • A waiting area in front of a bank of elevators. 

  • A class or group of interested people who try to influence public officials; collectively, lobbyists. 

  • lobscouse 

  • An apartment or passageway in the fore part of an old-fashioned cabin under the quarter-deck. 

  • A confined place for cattle, formed by hedges, trees, or other fencing, near the farmyard. 

  • A virtual area where players can chat and find opponents for a game. 

verb
  • To attempt to influence (a public official or decision-maker) in favor of a specific opinion or cause. 

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