Related Clues:

• Coke ___
• Word with inner or winner's
• Japanese fighter plane
• World dodo population
• Sum of opposites
• Number of remaining dodo birds
• Nice round figure
• Operator's number?
• Ring-shaped figure
• Symmetrical closed curve
• Nothing, nil
• Cipher for nothing
• Nought
• Curved closed line
• Perfectly round plane figure