Crossword

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Across
  1. 4. A very short message posted on the Twitter
  2. 5. One hundred forty is the limit
  3. 7. People behind you
  4. 8. A unique sequence of characters used to identify a user
  5. 9. Informal interchange of thoughts
  6. 11. The general course
  7. 12. used to talk with user in private
Down
  1. 1. A specific key word
  2. 2. A user
  3. 3. Information concerning your profil
  4. 6. The inhabitants of a town
  5. 10. Social network