sub and ex

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Across
  1. 2. to shut out
  2. 3. below human
  3. 5. to pull below
  4. 6. to go out
  5. 8. to dip under water
  6. 9. to breathe out
Down
  1. 1. to push out
  2. 2. to shout out
  3. 3. the title below the main title
  4. 4. below the Earth
  5. 6. to burst out
  6. 7. below zero