fortress /förˈtrəs or fōrˈ/

1. A fortified place
2. A defence

To guard

• tiges
• tigged
• tigging
• tiggywinkle
• tiggywinkles
• tight
• tight arse
• tight ass
• tight corner
• tighten
• tight end
• tight ends
• tightened
• tightener
• tighteners
• tightening
• tighten one's belt
• tightens
• tighten the screw
• tighten the screws
• tighter
• tightest
• tight-fisted
• tight-head prop
• tight-head props