filter

/'filtə/
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filter

The technician adjusts the filter on the audio mixing console.

Definition

  1. Noun:

    • A device for removing unwanted substances: A physical object or material that allows certain things (like liquids, gases, light, or information) to pass through while blocking others.
    • An electrical or optical component: A device that selectively transmits signals or waves within certain frequency ranges.

  2. Verb:

    • To pass through a filter: To remove unwanted parts from something by causing it to pass through a filtering device.
    • To move or spread gradually: To move slowly or in small amounts, as if passing through a filter.
    • To become known gradually: For information or news to slowly become public or reach people.
Usage Examples

  • Noun:

    • The water filter needs to be replaced every six months.
    • A blue filter was placed over the camera lens to darken the sky.

  • Verb (to remove via a device):

    • Filter the coffee to remove the grounds.
    • The software can filter spam emails automatically.

  • Verb (to move gradually):

    • Sunlight filtered through the leaves.
    • News of the event finally filtered out to the public.
Advanced Usage
  • "To filter in/into": To enter or arrive slowly or in small numbers.
    • New ideas began to filter into the conservative organization.
  • "To filter out": To leave a place gradually or in small numbers.
    • The crowd filtered out of the theater after the show.
  • "To filter through": To gradually become known or to pass slowly through something.
    • The implications of the new law are still filtering through the industry.
Variants and Related Words
  • Filtration (n): The process of filtering.
    • Water purification involves filtration and chemical treatment.
  • Filterable (adj): Capable of being filtered.
    • The solution contains filterable particles.
  • Unfiltered (adj): Not filtered.
    • He prefers unfiltered apple juice for its robust flavor.
Synonyms
  • Noun: Strainer, sieve, screen, purifier.
  • Verb: Sieve, strain, sift, screen, permeate, trickle, seep.
Related Phrasal Verbs
  • Filter out:
    • To remove by filtering: The system filters out harmful bacteria.
    • To exclude or prevent from passing through: These settings filter out inappropriate content.
  • Filter through:
    • To pass or diffuse gradually: Details of the plan are filtering through the department.
Related Idioms
  • (To be) a filter for something: To act as a means of screening or selecting.
    • The interview process is a filter for qualified candidates.
  • Filter bubble: A situation in which an internet user encounters only information and opinions that conform to and reinforce their own beliefs, caused by algorithms that personalize an individual's online experience.
    • Social media algorithms can create a filter bubble, limiting exposure to diverse viewpoints.
filter

The technician adjusts the filter on the audio mixing console.

Noun
  1. an electrical device that alters the frequency spectrum of signals passing through it
  2. device that removes something from whatever passes through it
Verb
  1. run or flow slowly, as in drops or in an unsteady stream
    • water trickled onto the lawn from the broken hose
    • reports began to dribble in
  2. pass through
    • Water permeates sand easily
  3. remove by passing through a filter
    • filter out the impurities

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