concourse

Recource is likely misspelled.

Recource has no English definition.

As a noun concourse

is 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.

As nouns the difference between anteroom and concourse

is that anteroom is a room before, or forming an entrance to, another; a waiting room while concourse is 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.