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filter - definition and synonyms

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noun [countable]     filter pronunciation in British English
Word Forms
  1. 1
    science an object or piece of equipment that allows you to remove solid parts that are not wanted from a liquid or gas

    a water filter

  2. 2
    a glass or plastic object that you put on a camera to change the colour or amount of light that passes through the lens
  3. 3
    computing a computer program that prevents some types of information from appearing on your computer when you search the Internet


a lifestyle focussing on simple pleasures such as comfort and cosiness in the home, and spending time with friends and family

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a form of location that involves the underwater detonation of a bomb which causes sound waves that are picked up by ships

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