regula /regˈū-lə/

1. The rule of a religious order
2. A fillet, esp under the Doric taenia, below each triglyph (architecture)

• bullocky
• bull-of-the-bog
• bull pen
• bull pens
• bull point
• bull points
• bull-pup
• bull-pups
• bullring
• bullrings
• bull-roarer
• bull-roarers
• bulls
• bull session
• bull sessions
• bull's-eye
• bull's-eyes
• bull shark
• bull sharks
• bullshit
• bullshits
• bullshitted
• bunded
• Bundesbank
• Bundesrat