Words with 'sion' suffix

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Across
  1. 5. bursting release of energy
  2. 7. streched or strained
  3. 8. built on the side of a house
  4. 9. wearing something away
  5. 10. increasing something
Down
  1. 1. make up your mind
  2. 2. what you want to do
  3. 3. understand the meaning of a passage or text
  4. 4. one of our four opperations in maths
  5. 6. concentration or care