Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “filter”

filter

verb
 
 
/ˈfɪltər/
[T] to pass a liquid or gas through a piece of equipment in order to remove solid pieces or other substances: The water was filtered to remove any impurities.Separating and dividingScientific techniques
filter down/in/through, etc to gradually appear or become known: The sunlight filtered through the bedroom curtains. News is filtering in of an earthquake in Mexico.Appearing and disappearing
(Definition of filter verb from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “filter” in other dictionaries

Word of the Day

see the light of day

When something sees the light of day, it appears for the first time.

Word of the Day

Highly delighted, bitterly disappointed, ridiculously cheap: adverbs for emphasis.

by Liz Walter,
October 22, 2014
We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More