English abbreviations

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Across
  1. 5. brb
  2. 6. fyi
  3. 7. What's up
  4. 10. irl
Down
  1. 1. j4f
  2. 2. lmk
  3. 3. as soon as possible
  4. 4. afk
  5. 8. btw
  6. 9. can't stop laughing