Mono a Mono

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Across
  1. 3. an abnormal fear of being the only one there; fear of being alone
  2. 4. a speech in which every word has one tone of voice
  3. 5. having one color; a painting, design, photo, or outfit that is only one color or shades of one color
  4. 7. speaking or writing only one language
  5. 8. something made out of one single large block or piece of stone; one single stone monument
Down
  1. 1. having only one syllable
  2. 2. a track for subway or train cars that only has one rail
  3. 3. an eyeglass for one eye
  4. 6. control of a product or service by one company
  5. 7. a long speech given by one person