Egress
/ˈiːɡres/
Definition 1 of 2
Pro Tip 1/3Physical Movement
Used to describe someone physically leaving, especially from a confined space or event. 
After the concert, the singer's egress from the stage was swift.
Pro Tip 2/3Not for Crowds
Refers to the movement of individuals or small groups, not the movement of large crowds. 
The security team planned the VIP's egress to avoid attention.
Pro Tip 3/3Not Commonly Used
A formal term that's not commonly used in everyday conversation, more often found in literature or official contexts. 
The novel described the thief's egress as an artful disappearance into the night.