Spelling Extension

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Across
  1. 3. theory idea
  2. 6. tiny minute
  3. 9. strength or energy to
  4. 11. harmless safe
  5. 13. shady two-faced
  6. 14. refresh revive
  7. 16. to be unfair
  8. 17. book lover bookworm
  9. 19. unity togetherness
  10. 20. secret covert
  11. 21. meantime meanwhile
Down
  1. 1. a prosses by which green plants sunlight
  2. 2. forecast guess
  3. 4. relating to measuring
  4. 5. rule plan track
  5. 7. lighten up brighten
  6. 8. not consistent
  7. 10. Tasty delicious
  8. 12. unclear uncertain
  9. 15. modify
  10. 18. Follow a winding course