filter Meaning, definition in Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of "filter" - English Dictionary

See all translations

filternoun [C]

uk   /ˈfɪl.tər/  us   /-t̬ɚ/

filter noun [C] (EQUIPMENT)

C2 any of several types of equipment or devices for removing solids from liquids or gases, or for removing particular types of light: a water filter a dust filter I like to experiment with different light filters on my camera. Ozone is the Earth's primary filter for ultraviolet radiation.

filter noun [C] (TRAFFIC)

UK a green, arrow-shaped light that is part of a set of traffic lights and tells drivers when they can turn left or right: a traffic filter a left/right filter

filterverb

uk   /ˈfɪl.tər/  us   /-t̬ɚ/

filter verb (APPEAR GRADUALLY)

C2 [I + adv/prep] to appear or happen gradually or to a limited degree: News filtered down to us during the day. Reports about an accident began to filter in. Sunlight filtered through the branches.

filter verb (REMOVE)

C2 [T] to remove solids from liquids or gases, or to remove particular types of light, using special equipment: The water is filtered to remove any impurities. Devices in the two chimneys would filter (out) (= remove) radioactive dust.
Phrasal verbs
(Definition of filter from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of filter?
Add Cambridge dictionaries to your browser to your website

Definitions of “filter” in other dictionaries

Word of the Day
child benefit

money received regularly by families from the government to help pay for the costs of taking care of children

Word of the Day

Are you a glass-half-full person? (Everyday Idioms)
Are you a glass-half-full person? (Everyday Idioms)
by Kate Woodford,
July 29, 2015
A reader of this blog recently asked for a post on idioms that are used in everyday English. This seemed like a reasonable request. After all, if you are going to make the effort to learn a set of English idioms, you want those idioms to be useful. The question, then, was

Read More 

responsible luxury noun
responsible luxury noun
August 03, 2015
high-end, green tourism and hospitality Jumeirah’s ‘responsible luxury’ approach is an example of a sustainable travel experience – future guests will enjoy the environment as much as today’s.

Read More