1. An advanced work with two flanks and two faces, standing out from the angles of a rampart.

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

• basoon,
• biston,
• uestion,
• qustion,
• basion,
• qwstion,
• reastion,
• pasttion,
• bention,
• pastion,
• bartione,
• basson,
• sebastion,
• stion,
• brition,
• costion,
• buttion,
• bostion,
• quastion,
• qeastion

• Baston,
• Bagdon,
• bastin,
• baisden,
• boasting,
• bastinado,
• bastioned,
• Bastien,
• basting,
• Bastian.

The adjective form of the word "bastion" is "bastioned".

The plural of the "bastion" can be the "bastions".

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