postern /posˈtərn or pōˈstərn/

1. A back door or gate
2. A small private door
3. A sallyport (qv under sally¹)

1. (of a door, gate, etc) back
2. Private

• kilojoule
• kilojoules
• kilolitre
• kilolitres
• kilomega-
• kilometre
• kilometres
• kilometric
• kilopond
• kiloponds
• kilos
• kiloton
• kilotonne
• kilotonnes
• kilotons
• kilovolt
• kilovolts
• kilowatt
• kilowatt hour
• kilowatts
• kilp
• kilps
• kilt
• kilted
• kilter