quatrefoil /katˈər-foil or katˈrə-foil/ or quatrefeuille /-fœ-ē or -fīl/

1. A four-petalled flower or leaf of four leaflets
2. An openwork design or ornament divided by cusps into four lobes (architecture)

• badmashes
• badmen
• badminton
• badmintons
• badmouth
• badmouthed
• badmouthing
• badmouths
• badness
• badnesses
• bad news
• bads
• bad sailor
• bad scran to you
• bad shot
• bad shots
• bad show
• bad-tempered
• bad trip
• bad trips
• bad'ware
• BAe
• Baedeker
• Baedeker raid
• bael