concourse

1. 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. (countable, uncountable)
2. An airport terminal. (countable, uncountable)
3. A large group of people; a crowd. (countable, uncountable)
4. The running or flowing together of things; the meeting of things; a confluence. (countable, uncountable)
5. An open space, especially in a park, where several roads or paths meet. (countable, uncountable)

Plural concourses