
1) Back door 2) Back door or gate 3) Back gate 4) Castle architecture 5) French word used in English 6) Gate 7) Private back gate 8) Private entrance 9) Secondary entrance 10) Side entrance
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https://www.crosswordclues.com/clue/postern

1) Door
Found on
https://www.crosswordclues.com/clue/postern

back entrance
Found on
http://charlesdickenspage.com/glossary.html

A lesser or private gate.
Found on
http://great-castles.com/glossary.php

back door or gate; small private door
Found on
http://phrontistery.info/p.html

• (n.) Originally, a back door or gate; a private entrance; hence, any small door or gate. • (n.) A subterraneous passage communicating between the parade and the main ditch, or between the ditches and the interior of the outworks. • (a.) Back; being behind; private.
Found on
http://thinkexist.com/dictionary/meaning/postern/

small door or gate, usually some distance from main entrance of castle or ward. Often hidden to allow defenders to enter and exit castle without detection. Sallyport. Secondary gateway or back doorway
Found on
http://www.castles-of-britain.com/glossary.htm

1. Originally, a back door or gate; a private entrance; hence, any small door or gate. 'He by a privy postern took his flight.' (Spenser) 'Out at the postern, by the abbey wall.' (Shak) ... 2. A subterraneous passage communicating between the parade and the main ditch, or between the ditches and the interior of the outworks. ... Origin: OF. Postern...
Found on
http://www.encyclo.co.uk/local/20973

small doorway useful for entering or leaving a castle after the main gates had been closed
Found on
http://www.encyclo.co.uk/local/22129

Side entrance
Found on
http://www.encyclo.co.uk/local/22203

Small gateway in a castle from which the besieged could sally forth.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Pos'tern adjective Back; being behind; private. 'The
postern door.'
Dryden. Found on
http://www.encyclo.co.uk/webster/P/133
Pos'tern noun [ Old French
posterne ,
posterle , French
poterne , from Latin
posterula , from
posterus coming after. See
Posterior .]
1. Originally, a back door or gate; a private entrance; hence, any small door or gate. « He by a privy
pos...Found on
http://www.encyclo.co.uk/webster/P/133

A postern is a private entrance to a castle, town, monastery or other enclosed building.
Found on
http://www.probertencyclopaedia.com/browse/TP.HTM

A secondary door.
Found on
http://www.virtualani.org/glossary/index.htm

[
n] - a small gate in the rear of a fort or castle
Found on
http://www.webdictionary.co.uk/definition.php?query=postern

Any small door or gate serving as a private entrance, usually at the rear of a building. You can see examples of Postern gates over on our website under gates for a walled garden.
Found on
http://www.woodworkersuk.co.uk/blog/carpentry-and-joinery-glossary/carpentr

small doorway useful for entering or leaving a castle after the main gates had been closed
Found on
https://www.encyclo.co.uk/local/20402

minor gate or door in a late Roman town- or fortwall
Found on
https://www.encyclo.co.uk/local/20434
noun a small gate in the rear of a fort or castle
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.