Camping with the President

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Across
  1. 3. To show a sign.
  2. 4. People who have common family ancestors
  3. 5. To use special force or stress when saying a particular word.
  4. 7. Very impressive or great.
Down
  1. 1. A person who specializes in nature.
  2. 2. An unexpected meeting
  3. 6. Smooth surface