mono-

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