filter

US /ˈfɪltɚ/

UK /'fɪltə(r)/

B1

noun

  • Device to remove certain types of light, sound
  • Device to remove unwanted things from liquid, gas
  • A transparent screen used in front of a camera lens to change the light.
  • A program or device that filters data.
  • A digital effect or setting that modifies an image or video.

verb

  • To remove certain types of light, sound
  • To remove unwanted substances from a liquid or gas

other

  • To pass (a liquid, gas, light, or sound) through a device to remove unwanted material.
  • To pass slowly or gradually.
  • To selectively prevent the passage of (information or people).
  • To pass (light, sound, etc.) through a filter to reduce its intensity or alter its quality.
  • To apply a digital effect or setting to modify an image or video.

other

  • To move or pass gradually or slowly.
  • Of a motorcycle or cyclist: to move between lanes of slower-moving or stationary traffic.