concourse

Concise Oxford English Dictionary © 2008 Oxford University Press:
concourse/ˈkɒŋkɔːs/

▶noun

• 1 a large open central area inside or in front of a public building.

• 2 formal a crowd or assembly.

  ■ the action of coming together.

– origin ME: from OFr. concours, from L. concursus, from concurs-, concurrere (see concur).