(-poly-)

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Across
  1. 2. a person who speaks many languages
  2. 5. a lie detector that records body responses
  3. 6. a shape with many angles
  4. 8. a type of material made from chemical parts
  5. 9. a large group of islands in the Pacific Ocean
Down
  1. 1. an educational industry that focus on academic
  2. 2. shapes with many sides
  3. 3. syllable(s)/many in a word
  4. 4. a word with many meanings
  5. 7. having many syllables