Unit 1

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Across
  1. 2. the number named by a unit with twelve zeros
  2. 3. being one-sided
  3. 5. taking place twice a year
  4. 9. of or pertaining
  5. 11. to cut
  6. 13. a figure of three sides and three angles
  7. 14. a two winged airplane
  8. 15. an animal written about in fables
  9. 18. the number named by a unit with nine zeros
  10. 19. lasting for two years
  11. 20. being three sided
Down
  1. 1. pertaining to three languages
  2. 4. two
  3. 5. taking place every two hundred years
  4. 6. one;single
  5. 7. pertaining to two languages
  6. 8. three
  7. 10. to make one
  8. 12. a two-footed animal as a man
  9. 15. a one-legged support
  10. 16. three-legged stand for a camera
  11. 17. a one-wheeled vehicle