postern (suomeksi)

Määritelmät:

A back gate, back door, side entrance, or other gateway distinct from the main entrance.
(lb, en, archaic) By extension, a separate or hidden way in or out of a place, situation etc.
(lb, en, historical, military) A subterranean passage communicating between the parade and the main ditch, or between the ditches and the interior of the outworks.
Situated at the rear; posterior.