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

• steeplebush
• steeplebushes
• steeplechase
• steeplechased
• steeplechaser
• steeplechasers
• steeplechases
• steeplechasing
• steeplechasings
• steeple-crown
• steeple-crowned
• steeple-crowns
• steepled
• steeple fair
• steeple fairs
• steeple hat
• steeple hats
• steeple house
• steeple houses
• steeplejack
• shutouts
• shuts
• shutter
• shutterbug
• shutterbugs