can you lose a language you never knew?

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Across
  1. 3. opposite of rise
  2. 6. sukupolvi
  3. 7. the words in the songs are called
  4. 9. näyttää
  5. 12. when something isnt easy, it is ----
  6. 14. tilaisuus
  7. 15. if you dont succeed, you ----
Down
  1. 1. If you dont know the person, they are a ---- to you
  2. 2. monipuolinen
  3. 4. häpeä
  4. 5. opposite of comfortable
  5. 8. opposite of adulthood
  6. 10. tilanne
  7. 11. yksikielinen
  8. 13. when you talk with someone, you ---- with them