Palindrome Crossword

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Across
  1. 2. Slang for father
  2. 4. A formal way to address a woman
  3. 5. To be silent
  4. 6. Songs sung alone
  5. 9. You see with it
Down
  1. 1. Slang for statistics
  2. 2. A bird that is extinct
  3. 3. A firecracker that won't pop
  4. 4. Slang for mother
  5. 7. Even, flat
  6. 8. Slang for girl sibling
  7. 9. The night before Christmas