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

• subpoena'd
• subpoenaed
• subpoenaing
• subpoenas
• subpolar
• subpopulation
• subpopulations
• sub-postmaster
• sub-postmasters
• sub-postmistress
• sub-postmistresses
• sub-postoffice
• sub-postoffices
• subpotent
• subprefect
• subprefects
• subprefecture
• subprefectures
• sub-prime
• subprincipal
• subprincipals
• subprior
• subprioress
• subprioresses
• subpriors