Spelling crossword

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Across
  1. 3. to come nearer to someone or something
  2. 5. a type of gem
  3. 6. something worn outdoors
  4. 7. can pass through every part
  5. 8. not native to a community
Down
  1. 1. hollowed out like a cup
  2. 2. a substance that conducts heat, electricity or sound
  3. 4. another word for cleanliness