concourse
noun /ˈkɒŋkɔːs/
  /ˈkɑːnkɔːrs/
 - a large, open part of a public building, especially an airport or a train station- the station concourse
- There are lots of shops leading off the main concourse.
 Word Originlate Middle English (originally referring to a crowd): from Old French concours, from Latin concursus, from concurs- ‘run together, met’, from the verb concurrere ‘run together, assemble in crowds’, from con- ‘together with’ + currere ‘to run’. The current sense (originally US) dates from the mid 19th cent.