Baby Talk

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Across
  1. 2. Grow or cause to grow and become more mature, advanced, or elaborate.
  2. 4. Analysis, Investigation
  3. 7. Very young child
  4. 8. The faculty of perceiving sounds.
Down
  1. 1. Share or exchange information, news, or ideas
  2. 3. Person, who doesn't hear
  3. 5. Visual-manual modality to convey meaning, instead of spoken words
  4. 6. In a normal manner, in the usual way
  5. 9. Become larger or greater over a period of time; increase