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

• vacuum distillation
• vacuumed
• vacuum flask
• vacuum flasks
• vacuum forming
• vacuum gauge
• vacuum gauges
• vacuuming
• vacuum-packed
• vacuum printing frame
• vacuum printing frames
• vacuum pump
• vacuum pumps
• vacuums
• vacuum tube
• vacuum tubes
• VAD
• vade
• vaded
• vade-mecum
• vades
• vading
• vadose
• vae
• vae victis