Astern and Postern

Astern adverb - Near, toward, or in the stern of a ship or the tail of an aircraft.

Postern and astern are semantically related. In some cases you can use "Postern" instead an adjective "Astern".

Postern noun - A small gate in the rear of a fort or castle.

Astern and postern are semantically related. Sometimes you can use "Astern" instead an adjective "Postern".