noun
Etymology: sally (I)
1.
a. : a large gate or passage in a fortified place suitable for the use of troops making a sortie
b. : a similar passage especially through the lower story of buildings (as barracks) forming a quadrangle
2. usually sally-port ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷
a. : a large port on each quarter of a fire ship for escape of the men after the firing of the train
b. : a large port in a three-decker warship