Unit 1 Word cell Puzzle

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Across
  1. 4. , a one-legged support
  2. 6. , a three-legged stand or support
  3. 7. , to cut or to divide something into two parts
  4. 9. , taking place twice a year
  5. 11. , three; three times
  6. 12. , of or pertaining to one language
  7. 14. , a two-winged airplane
  8. 15. , lasting for two years
  9. 16. , a one-wheeled vehicle
  10. 19. , a plane geometric figure of three sides and three angles
Down
  1. 1. , the number nambed by a unit with twelve zeros after it
  2. 2. , a two-footed animal
  3. 3. , being three-sided
  4. 4. , an animal written about in fables
  5. 5. , lasting for, consisting of , or taking place every 200 years
  6. 7. , the number named by an unit with nine zeros after it
  7. 8. , two;twice
  8. 10. , one;single
  9. 11. , of or pertaining to three languages
  10. 13. , to make one, or cause to become one
  11. 17. , of or pertaining to two languages
  12. 18. , being one-sided