spandrel or spandril /spanˈdrəl/

1. The space between the curve of an arch and the enclosing mouldings, string-course, or the like (architecture)
2. A self-contained area of surface space (esp triangular) available for decorative use, eg in graphic design or forming part of a structure

• steeple
• steeplebush
• steeplebushes
• steeplechase
• steeplechased
• steeplechaser
• steeplechasers
• steeplechases
• steeplechasing
• steeplechasings
• steeple-crown
• steeple-crowned
• steeple-crowns
• steepled
• steeple fair
• steeple fairs
• steeple hat
• steeple hats
• steeple house
• steeple houses
• steeplejack
• shutouts
• shuts
• shutter
• shutterbug