American English

Definition of filter verb from the Oxford Advanced American Dictionary



    Verb Forms present simple I / you / we / they filter
    he / she / it filters
    past simple filtered
    -ing form filtering
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  1. 1[transitive] filter something to pass liquid, light, etc. through a special device, especially to remove something that is not wanted All drinking water must be filtered. Use a sun block that filters UVA effectively. see also filtration
  2. 2[transitive] filter something to use a special program to check the content of e-mails or websites before they are sent to your computer
  3. 3[intransitive] + adv./prep. (of people) to move slowly in a particular direction The doors opened and people started filtering in.
  4. 4[intransitive] + adv./prep. (of information, news, etc.) to slowly become known More details about the crash are filtering through.
  5. 5[intransitive] + adv./prep. (of light or sound) to come into a place slowly or in small amounts Sunlight filtered in through the curtains.
  6. Phrasal Verbsfilter somethingout
See the Oxford Advanced Learner's Dictionary entry: filter