How to say Hello!

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Across
  1. 3. French
  2. 4. Romanian
  3. 6. German
  4. 10. Spanish
  5. 11. Korean
  6. 16. Irish
  7. 17. Chinese
  8. 18. Czech
  9. 21. Slovenian
  10. 23. English
  11. 24. Turkish
  12. 25. Greek
  13. 26. Polish
  14. 27. Finnish
Down
  1. 1. Ukrainian
  2. 2. Burmese
  3. 3. Croatian
  4. 5. Hawaiian
  5. 7. Slovak
  6. 8. Arabic
  7. 9. Indonesian
  8. 12. Hindi
  9. 13. Swedish
  10. 14. Latvian
  11. 15. Vietnamese
  12. 19. Portuguese
  13. 20. Japanese
  14. 22. Russian
  15. 26. Italian