[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/filter/)

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# filter

noun (a filter, filters); verb (filter, filters, filtered, filtering)

«filter» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. A filter is a material or device with tiny holes that lets liquid or air pass but catches solid bits. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#m1)
2. To filter is to pass something through a filter to clean or separate it. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#m2)
3. A filter is a setting that changes or blocks something, like a photo filter or an internet filter. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#m3)
4. To filter in or out is to move slowly in small amounts, like light or people. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#m4)

### In the lessons

In science, filtering separates an insoluble solid (like sand) from a liquid (like water) using filter paper and a funnel; dissolved salt passes through. Water treatment plants filter water to make it safe. Coffee machines, fish tanks and vacuum cleaners have filters. In online safety, filters block harmful websites. Phrases: filter paper, water filter, air filter, filter out, sunlight filtered through.

### Examples

- We filtered the muddy water through filter paper. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#x1)
- The sand stayed in the filter. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#x2)
- Salt passes through a filter because it is dissolved. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#x3)
- Our fish tank has a filter to keep it clean. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#x4)
- Sunlight filtered through the leaves. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#x5)
- The school internet has a filter. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#x6)
- She added a funny filter to the photo. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/#x7)

### Note

A filter cannot remove dissolved things like salt or sugar; for that you evaporate the water. Filtered water from a stream may still have germs; it is not always safe to drink. Do not confuse filter with sieve: a sieve has bigger holes.

## On Mova

- [Trees and pragmatics of «filter» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filter/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«filter» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/filter.html) on Mova free.