fortress /förˈtrəs or fōrˈ/

1. A fortified place
2. A defence

To guard

• adventurists
• adventurous
• adventurously
• adventurousness
• adventurousnesses
• adverb
• adverbial
• adverbialise
• adverbialised
• adverbialises
• adverbialising
• adverbialize
• adverbialized
• adverbializes
• adverbializing
• adverbially
• adverbs
• ad verbum
• adversaria
• adversarial
• adversaries
• adversary
• adversative
• adverse
• adversely