Silent letters

1234567891011
Across
  1. 2. - snug and secure
  2. 5. - hear with your ears
  3. 9. - chill, relaxed
  4. 10. - incorrect
  5. 11. - argue
Down
  1. 1. - strength, or a possibility
  2. 3. - past tense of know
  3. 4. - to cover and bring around
  4. 5. - baby sheep
  5. 6. - billboard, speed limit, street name
  6. 7. - correct, opposite of left
  7. 8. - something to cut with