Waiting for news

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Across
  1. 3. stupid way of communicating
  2. 4. to make contact with
  3. 7. of much significance
  4. 8. process of energy being emitted as particles or waves
  5. 9. a person appointed to an office of duties
  6. 15. a device which introduces reactance in a circuit
  7. 16. injury, harm, reduced in value
  8. 18. inclusive of all
Down
  1. 1. in control, gives energy
  2. 2. 3 or more calls interconnect simultaneously
  3. 4. the main body of the document
  4. 5. online letter
  5. 6. where a place or person is situated
  6. 10. involving atomic weapons
  7. 11. sudden, unexpected
  8. 12. communication containing some information
  9. 13. troubled, anxious
  10. 14. all but; almost
  11. 17. respond, answer