Puzzle#4

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Across
  1. 3. a light-emitting diode (a semiconductor diode which glows when a voltage is applied).
  2. 4. a length or portion of time.
  3. 7. (of two or more people or things) similar to each other.
  4. 8. fearful; frightened.
  5. 9. the person who leads or commands a group, organization, or country.
Down
  1. 1. existing or occurring before in time or order.
  2. 2. become fully aware of (something) as a fact; understand clearly.
  3. 5. the first appearance of light in the sky before sunrise.
  4. 6. the mental and moral qualities distinctive to an individual.