1. high-pass filter a filter that passes frequencies above a certain value and attenuates frequencies below that value
  2. Cape Flattery a cape of northwestern Washington
  3. fuel filter a filter in the fuel line that screens out dirt and rust particles from the fuel
  4. air filter a filter that removes dust from the air that passes through it
  5. hop field a garden where hops are grown
  6. oil filter a filter that removes impurities from the oil used to lubricate an internal-combustion engine
  7. low-pass filter a filter that passes frequencies below a certain value and attenuates frequencies above that value
  8. light filter a transparent filter that reduces the light (or some wavelengths of the light) passing through it
  9. filter device that removes something from what passes through it
  10. falter move hesitatingly, as if about to give way
  11. defaulter a contestant who forfeits a match
  12. philter a drink credited with magical power
  13. coffee filter filter that passes the coffee and retains the coffee grounds
  14. halter rope or canvas headgear for a horse, with a rope for leading
  15. palter be deliberately ambiguous or unclear in order to mislead
  16. file folder folder that holds papers together in a filing cabinet
  17. water filter a filter to remove impurities from the water supply
  18. welter a confused multitude of things
  19. right fielder the person who plays right field
  20. left fielder the person who plays left field