Silent letters

1234567891011
Across
  1. 3. plastic
  2. 4. a random person
  3. 6. relaxing
  4. 9. making it soft or softer
  5. 10. someone invited to your home
  6. 11. sound
Down
  1. 1. cream for lips
  2. 2. fighting
  3. 4. not right
  4. 5. you commonly do it
  5. 7. sound
  6. 8. from a egg