broch¹, also brogh or brough /brohh/

1. A dry-built circular tower of the late Iron Age with galleries in the thickness of the wall, common in Scotland, very rare elsewhere
2. A luminous ring around the moon

• pileous
• piler
• pilers
• piles
• pile shoe
• pile shoes
• pileum
• pile up
• pile-up
• pile-ups
• pile up the agony
• pileus
• pilework
• pileworks
• pile-worm
• pile-worms
• pilewort
• pileworts
• pilfer
• pilferage
• pilferages
• pilfered
• pilferer
• pilferers
• pilferies