Words with IE & EI

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Across
  1. 3. a hotel employee who helps drive people's cars and shows them around
  2. 4. a slow-moving mass of ice
  3. 5. a subject you learn in school e.g. E=MC^2
  4. 8. strange, and unfamiliar
  5. 9. lose a right to something because of a wrongdoing
  6. 10. the mass of someone/something
Down
  1. 1. not having enough of a specified ingredient
  2. 2. a tube that brings blood around the body
  3. 6. the number before IX
  4. 7. a community of people living together
  5. 10. very strange and almost supernatural