Natural classes

1234567891011
Across
  1. 2. flow of the air through vocal tract
  2. 4. all consonans; produce noise
  3. 6. sound produced with tip of the tounge touching upper teeth
  4. 9. opening of vocal tract; can have a peak
  5. 10. with active articulator tounge and passive articulator velum
  6. 11. full closure+air pressure+sudden release
Down
  1. 1. sounds in which air flows on the sides of the tounge
  2. 3. can be movable or motionless
  3. 5. tip of the tounge with alveolar ridge are articulators
  4. 7. comlete oral closure+no air pressure+free release through the nose
  5. 8. one of two affricates