1. A detached work with two embankments, which make a salient angle.

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

• ravlin,
• raveline,
• ravellin,
• eavelin,
• favelin,
• tavelin,
• 5avelin,
• 4avelin,
• rzvelin,
• rsvelin,
• rwvelin,
• rqvelin,
• racelin,
• rabelin,
• ragelin,
• ravelon,
• Ravelyn,
• Ravelen,
• Ravilin,
• Ravlinn

The plural of the "Ravelin" can be the "ravelins".

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