Definition from Nolo’s Plain-English Law Dictionary

An exit, or the act of exiting. The most famous use of this word was by P.T. Barnum, who put up a large sign in his circus tent saying "This Way to the Egress." Thinking an egress was some type of exotic bird, people eagerly went though the passage and found themselves outside the tent. Compare: ingress

Definition provided by Nolo’s Plain-English Law Dictionary.