Lucy's crossword

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Across
  1. 1. the action of one object coming forcibly into contact with another
  2. 5. not satisfied
  3. 6. in our library we have people that keep the library clean
  4. 7. The opposite of helpful
Down
  1. 2. a series of military operations intended to achieve a goal, confined to a particular area, or involving a specified type of fighting
  2. 3. the faculty or state of being able to see
  3. 4. break the connection of or between