The linguistics crossword

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Across
  1. 5. All the words known or used by a person.
  2. 10. system of communication using words.
  3. 11. A word that imitates a sound.
  4. 12. A way of pronouncing words
  5. 13. Able to speak several languages.
Down
  1. 1. Informal or trendy language
  2. 2. Sharing information using language
  3. 3. The rules for sentence structure.
  4. 4. A regional variety of a language.
  5. 6. A person who studies languages.
  6. 7. Related to traditions and customs.
  7. 8. The ancient language of Rome.
  8. 9. The study of speech sounds