Related Clues:

• Code that's not a secret
• Floor space
• Piece of land
• L x W
• Surroundings
• Geometrician's calculation
• A loser may have to tighten it
• It has a code
• Realm
• Kind of code used every day
• Nonsmoking ___
• Geometric measure
• Quick drink
• Square measure
• Carpet layer's measurement