egress
noun
the act or an instance of going, especially from an enclosed place.
A verb form that is used in progressive verb constructions and may also function as a modifier or a gerund.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This effected, we blocked up its egressing mouth, that, should our escape be discovered, the enemy might not find the direct road we had taken.
From The Scottish Chiefs by Jane Porter