U R Better!!!

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Across
  1. 3. rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
  2. 6. It starts with a Bet and an and ends with ter
  3. 7. It is red
  4. 8. It is the name of a nerd
Down
  1. 1. It is a part of a whole
  2. 2. It is what this puzzle is called
  3. 4. It is called registration
  4. 5. It means to show things