Christmas everywhere!

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Across
  1. 1. Abbreviation or informal term for Christmas
  2. 6. A colour used to define Christmas
  3. 7. Popular red flower bought during Christmas
  4. 9. A decorated paper tube that makes a sharp noise ("crack!") and releases a small toy when two people pull it apart
  5. 10. The day before Christmas is Christmas...
  6. 11. A yellow precious metal, one of the gifts that the three wise men gave to Jesus
  7. 12. A popular character who gives origin to Santa Claus
  8. 13. Activity where people move through the streets in vehicles and bands playing music
  9. 15. Something that falls down when it snows
  10. 16. Season when Christmas is celebrated
  11. 17. A synonym of "gift"
  12. 18. Something that is decorated in most houses
Down
  1. 2. A person who looks after sheep
  2. 3. A decoration consisting of thin strips of shiny metal foil, traditionally used at Christmas
  3. 4. Paper used to cover presents
  4. 5. To wish a happy Christmas you use this word
  5. 8. Activity where you slide on ice
  6. 14. Last month of the year