Spelling words

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Across
  1. 3. A place to display
  2. 4. Mountain area
  3. 6. Very knowledgeable
  4. 8. 100 years
  5. 10. To flatten
  6. 11. Not a clear day
Down
  1. 1. staying true to one thing
  2. 2. not normal
  3. 5. Bothering another person
  4. 7. Falling short of
  5. 9. Not a big enough opening
  6. 12. A large frozen piece of land