1. ground level the height of the ground on which something stands
  2. signal level the amplitude level of the desired signal
  3. soundlessly without a sound
  4. sound law a law describing sound changes in the history of a language
  5. sound wave (acoustics) a wave that transmits sound
  6. mason's level a level longer than a carpenter's level
  7. sea level level of the ocean's surface
  8. spirit level indicator that establishes the horizontal when a bubble is centered in a tube of liquid
  9. noise level the amplitude level of the undesired background noise
  10. soundless marked by absence of sound
  11. sound hole a hole in a soundboard designed to resonate with the tones
  12. sand leek European leek cultivated and used like leeks
  13. sound alphabet an alphabet of characters intended to represent specific sounds of speech
  14. support level (stock market) the price at which a certain security becomes attractive to investors
  15. Saint Olav King and patron saint of Norway (995-1030)
  16. multilevel of a building having more than one level
  17. sound off express one's opinion openly and without fear or hesitation
  18. round file a file with a circular cross section
  19. sound film motion-picture film with sound effects and dialogue recorded on it
  20. sea-level lying below the normal level