Related Clues:
- Cipher for nothing
- Nought
- Curved closed line
- Perfectly round plane figure
- Closed, curved line
- Closed plane curve
- Curved, closed line
- Naught, nowt, zilch
- Regular route for a sentry
- A perfectly round plane figure
- Number of people bound together by similar interests - sound round
- Nought, the figure 0
- Nought, nil
- 'Zero, zilch (7)'
- Perfectly round figure