Latin Root: "sub"

1234567
Across
  1. 3. below an acceptable level
  2. 4. to take away or remove
  3. 6. below the level of conscious thought
  4. 7. below zero
Down
  1. 1. a vehicle that travels under water
  2. 2. existing or happening under the ground
  3. 5. an underground train or passage
  4. 6. to put under water