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

• cosech
• cosed
• coseismal
• coseismic
• cosentient
• coses
• coset
• cosets
• cosh
• cosh boy
• cosh boys
• coshed
• cosher
• coshered
• cosherer
• cosherers
• cosheries
• coshering
• coshers
• coshery
• coshes
• COSHH
• coshing
• cosied
• cosier