filter.
filter
Meaning & usage
filter a device which separates a suspended, dissolved, or particulate matter from a fluid, solution, or other substance; any device that separates one substance from another
filter electronics or software that separates unwanted signals (for example noise) from wanted signals or that attenuates selected frequencies
Where this word comes from
From Dutch filter, from French filtre, from Medieval Latin filtrum (compare also Old French feutre (“felt; filter”)), from Frankish *filtir, from Proto-West Germanic *felt.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.