{
    "term": "filter",
    "partOfSpeech": "noun",
    "ox5000": true,
    "cefr": "c1",
    "image": "data/images/fi/filters.png",
    "definitions": [
        {
            "senseNumber": 1,
            "definition": "a device containing paper, sand, chemicals, etc. that a liquid or gas is passed through in order to remove any materials that are not wanted",
            "cefr": "c1",
            "examples": [
                {
                    "text": "an **air/oil filter**"
                },
                {
                    "text": "a **coffee/water filter**"
                },
                {
                    "text": "**filter paper** for the coffee machine"
                }
            ],
            "topics": ["Scientific research"]
        },
        {
            "senseNumber": 2,
            "definition": "a device that allows only particular types of light or sound to pass through it",
            "examples": [
                {
                    "text": "The camera has an anti-glare filter."
                }
            ]
        },
        {
            "senseNumber": 3,
            "definition": "a program that processes information to leave out the types that are not wanted, or that stops particular types of electronic information, email, etc. from being sent to a computer",
            "labels": "(computing)",
            "cefr": "c2",
            "examples": [
                {
                    "text": "When you do a search, there are filters for size and brand."
                },
                {
                    "text": "**Spam filters** block out almost all threats."
                }
            ],
            "topics": ["Phones, email and the internet"]
        },
        {
            "senseNumber": 4,
            "definition": "a tool on digital cameras, photo apps, etc. that allows you to change the appearance of an image",
            "labels": "(computing)",
            "cefr": "c2",
            "examples": [
                {
                    "text": "The software allows you to apply filters, remove blemishes and add text to your images."
                }
            ],
            "topics": ["Computers"]
        },
        {
            "senseNumber": 5,
            "definition": "a light on a set of traffic lights showing that traffic can turn left (or right) while traffic that wants to go straight ahead or turn right (or left) must wait",
            "labels": "(British English)",
            "examples": [
                {
                    "text": "a filter lane"
                }
            ]
        }
    ],
    "pronunciations": {
        "uk": [
            {
                "pronunciation": "/ˈfɪltə(r)/",
                "audio": "fi/filter/filter__gb_1.mp3"
            }
        ],
        "us": [
            {
                "pronunciation": "/ˈfɪltər/",
                "audio": "fi/filter/filter__us_1.mp3"
            }
        ]
    },
    "wordOrigin": "late Middle English (denoting a piece of felt): from French filtre, from medieval Latin filtrum ‘felt used as a filter’, of West Germanic origin and related to felt."
}