1. A postern gate or other passage for the troops to sally out by.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• aallyport,
• zallyport,
• xallyport,
• dallyport,
• eallyport,
• wallyport,
• szllyport,
• ssllyport,
• swllyport,
• sqllyport,
• sallypott,
• sallypoert,
• salyport,
• sallport,
• Salliport,
• Sollyport,
• Sallieport,
• Salleport,
• Sallypert,
• Salyyport

The plural of the "Sallyport" can be the "sallyports".

The singular of the "Sallyport" can be the "Sallyport".