cial, tial words

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Across
  1. 5. meaningful, substantial
  2. 6. first
  3. 8. vital, necessary
  4. 9. distinctive, out of ordinary
Down
  1. 1. significant
  2. 2. private, classified
  3. 3. monetary, economic
  4. 4. helpful, favorable
  5. 5. profit-making, marketing
  6. 7. surface, in front