10 Big words

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Across
  1. 2. - a synthetic resin which is a polymer of styrene
  2. 6. - something big
  3. 8. - keep an established church
Down
  1. 1. - something big
  2. 3. - an insect which sucks your blood
  3. 4. - a delicious food which can be used as a dip
  4. 5. - advanced words
  5. 7. - to plan something out
  6. 9. - a long pipe that allows you to breath
  7. 10. - something beyond the basic/or at the front of something -