Silent letters

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Across
  1. 3. a place for learning
  2. 5. it blows up
  3. 7. a Christian holiday
  4. 11. used for cutting
  5. 12. a place where a king
  6. 15. opposite of wizard
  7. 16. time
Down
  1. 1. to be aware
  2. 2. someone who fixes pipe
  3. 4. you wear a watch
  4. 6. to pay attention
  5. 8. always truthful
  6. 9. a football
  7. 10. a part of your body
  8. 13. to hurt
  9. 14. to tap on a door
  10. 15. to tie up