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

• backsights
• back-slang
• back-slapping
• backslash
• backslashes
• backslid
• backslide
• backslider
• backsliders
• backslides
• backsliding
• backslidings
• backspace
• backspaced
• backspace key
• backspace keys
• backspacer
• backspacers
• biogas
• biogases
• biogen
• biogeneses
• biogenesis
• biogenetic
• biogenetic law