bastion /bastˈyən or bast-i-ən/

1. A kind of tower at the angle of a fortification
2. A defence, defender (figurative)

bastˈioned adjective

• pentangular
• pentanoic acid
• pentanol
• pentaploid
• pentaploidies
• pentaploids
• pentaploidy
• pentapodic
• pentapodies
• pentapody
• pentapolis
• pentapolises
• pentapolitan
• pentaprism
• pentaprisms
• pentarch
• pentarchies
• pentarchs
• pentarchy
• pentastich
• pentastichous
• pentastichs
• pentastyle
• pentastyles
• pentasyllabic