Across
- 2. Half of a circle.
- 4. Alone/by oneself.
- 5. Relating to a city or town.
- 6. To make or become one.
- 9. Lens/glasses for one eye.
- 10. Triangle with same length sides.
- 11. Two singers/musicians who play/sing together.
- 14. Junction of 3 roads.
- 15. Something sung by a singular actor.
- 17. Occurring every 2 years.
- 18. Easy to tell or locate.
- 19. To ward off/defend.
- 20. An animal able to live on both land and water.
Down
- 1. The middle number.
- 3. Movement of blood around the body.
- 7. Vehicle with two wheels.
- 8. Half a sphere.
- 12. Affecting or occurring on only one side.
- 13. The study of city-life.
- 16. A mythical creature: A horse with a narwhal horn.