Wiktionary

filter

See also: Filter and filtër

English

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English Wikipedia has an article on:
Wikipedia
 
Air filter
 
Neutral density filter

Etymology

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From Middle English filtre, from Medieval Latin filtrum (compare also Old French feutre (“felt; filter”)), from Frankish *filtir, from Proto-West Germanic *felt. See felt.

Pronunciation

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Noun

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filter (plural filters)

  1. 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.
  2. Electronics or software that separates unwanted signals (for example noise) from wanted signals or that attenuates selected frequencies.
  3. Any item, mechanism, device, or procedure that acts to separate or isolate.
    He runs an email filter to catch the junk mail.
    • 2013 May 25, “No hiding place”, in The Economist‎[1], volume 407, number 8837, page 74:
      In America alone, people spent $170 billion on “direct marketing”—junk mail of both the physical and electronic varieties—last year. Yet of those who received unsolicited adverts through the post, only 3% bought anything as a result. If the bumf arrived electronically, the take-up rate was 0.1%. And for online adverts the “conversion” into sales was a minuscule 0.01%. That means about $165 billion was spent not on drumming up business, but on annoying people, creating landfill and cluttering spam filters.
  4. (figurative) Self-restraint in speech.
    He's got no filter, and he's always offending people as a result.
  5. (mathematics, order theory) A non-empty upper set (of a partially ordered set) which is closed under binary infima (a.k.a. meets).
    The collection of cofinite subsets of ℝ is a filter under inclusion: it includes the intersection of every pair of its members, and includes every superset of every cofinite set.
    If (1) the universal set (here, the set of natural numbers) were called a "large" set, (2) the superset of any "large" set were also a "large" set, and (3) the intersection of a pair of "large" sets were also a "large" set, then the set of all "large" sets would form a filter.
  6. (photography) A translucent object placed in the light path of a camera to remove certain wavelengths (colors), or a computer program that simulates such an effect.

Antonyms

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  • (antonym(s) of “order theory”): ideal

Hyponyms

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Derived terms

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Descendants

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  • → Japanese: フィルター (firutā)
  • → Korean: 필터 (pilteo)

Translations

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The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Verb

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filter (third-person singular simple present filters, present participle filtering, simple past and past participle filtered)

  1. (transitive) To sort, sift, or isolate.
    This strainer should filter out the large particles.
    • 1954, Alexander Alderson, chapter 5, in The Subtle Minotaur‎[2]:
      “You have probably never seen anything like this before, Mr. Toler. It is baleen, or if you prefer it, whalebone, taken from the mouth of the bowhead whale. It is used by the whale to filter its food.”
    • 2022 October 25, Willy Staley, “The Try Guys and the Prison of Online Fame”, in The New York Times Magazine‎[3]:
      But fans’ emotions are no longer filtered through ticket or album sales; they’re heard directly, constantly, at all hours, on all the platforms people visit to generate and extinguish bad feelings in a never-ending cycle.
  2. (transitive) To diffuse; to cause to be less concentrated or focused.
    The leaves of the trees filtered the light.
  3. (intransitive) To pass through a filter or to act as though passing through a filter.
    The water filtered through the rock and soil.
  4. (intransitive) To move slowly or gradually; to come or go a few at a time.
    The crowd filtered into the theater.
  5. (intransitive) To ride a motorcycle between lanes on a road
    I can skip past all the traffic on my bike by filtering.

Synonyms

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  • (to sort, sift, or isolate) to filter out (something)

Translations

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The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
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Anagrams

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Danish

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Noun

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filter n (singular definite filtret or filteret, plural indefinite filtre)

  1. filter

Inflection

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Declension of filter
neuter
gender 		Singular Plural
indefinite definite indefinite definite
nominative filter filtret
filteret 		filtre filtrene
genitive filters filtrets
filterets 		filtres filtrenes

Dutch

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Etymology

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Borrowed from French filtre or German Filter, from Latin filtrum.[1]

Pronunciation

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  • IPA(key): /ˈfɪl.tər/
  • Audio:(file)
  • Hyphenation: fil‧ter

Noun

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filter m or n (plural filters, diminutive filtertje n)

  1. A filter (dense mesh or fabric used for filtration).
  2. A cigarette filter.
  3. A light filter.
  4. A camera filter.

Usage notes

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The word is masculine in Belgium, chiefly neuter but sometimes masculine in the Netherlands.

Derived terms

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Descendants

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References

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  1. ^ Philippa, Marlies, Debrabandere, Frans, Quak, Arend, Schoonheim, Tanneke, van der Sijs, Nicoline (2003–2009) Etymologisch woordenboek van het Nederlands (in Dutch), Amsterdam: Amsterdam University Press

Anagrams

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German

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Pronunciation

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Verb

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filter

  1. inflection of filtern:
    1. first-person singular present
    2. singular imperative

Hungarian

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Etymology

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From German Filter, from Medieval Latin filtrum.[1]

Pronunciation

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  • IPA(key): [ˈfiltɛr]
  • Hyphenation: fil‧ter
  • Rhymes: -ɛr

Noun

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filter

  1. filter (any device that separates one substance from another)
  2. cigarette filter

Declension

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Inflection (stem in -e-, front unrounded harmony)
singular plural
nominative filter filterek
accusative filtert filtereket
dative filternek filtereknek
instrumental filterrel filterekkel
causal-final filterért filterekért
translative filterré filterekké
terminative filterig filterekig
essive-formal filterként filterekként
essive-modal — —
inessive filterben filterekben
superessive filteren filtereken
adessive filternél filtereknél
illative filterbe filterekbe
sublative filterre filterekre
allative filterhez filterekhez
elative filterből filterekből
delative filterről filterekről
ablative filtertől filterektől
non-attributive
possessive - singular 		filteré filtereké
non-attributive
possessive - plural 		filteréi filterekéi
Possessive forms of filter
possessor single possession multiple possessions
1st person sing. filterem filtereim
2nd person sing. filtered filtereid
3rd person sing. filtere filterei
1st person plural filterünk filtereink
2nd person plural filteretek filtereitek
3rd person plural filterük filtereik

References

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  1. ^ Tótfalusi, István. Idegenszó-tár: Idegen szavak értelmező és etimológiai szótára (’A Storehouse of Foreign Words: an explanatory and etymological dictionary of foreign words’). Budapest: Tinta Könyvkiadó, 2005. →ISBN

Indonesian

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Indonesian Wikipedia has an article on:
Wikipedia id

Etymology

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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.

Pronunciation

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  • IPA(key): [ˈfɪltər]
  • Hyphenation: fil‧têr

Noun

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filter

  1. filter
    1. 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.
    2. (electronics, physics) electronics or software that separates unwanted signals (for example noise) from wanted signals or that attenuates selected frequencies.

Synonyms

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Derived terms

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Further reading

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Kashubian

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Etymology

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Borrowed from German Filter.

Pronunciation

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Noun

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filter m inan

  1. filter (device which separates a suspended, dissolved, or particulate matter from a fluid, solution, or other substance)
    Synonym: czëszcz

Further reading

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  • Jan Trepczyk (1994) “filtr”, in Słownik polsko-kaszubski (in Kashubian), volumes 1–2
  • Eùgeniusz Gòłąbk (2011) “filtr”, in Słownik Polsko-Kaszubski / Słowôrz Pòlskò-Kaszëbsczi‎[4]

Norwegian Bokmål

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Norwegian Wikipedia has an article on:
Wikipedia no

Etymology

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From French filtre.

Noun

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filter n (definite singular filteret or filtret, indefinite plural filter or filtre, definite plural filtra or filtrene)

  1. filter

Derived terms

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References

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Norwegian Nynorsk

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Norwegian Nynorsk Wikipedia has an article on:
Wikipedia nn

Etymology

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From French filtre.

Noun

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filter n (definite singular filteret, indefinite plural filter, definite plural filtera)

  1. filter

Derived terms

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References

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Serbo-Croatian

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Alternative forms

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Pronunciation

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  • IPA(key): /fǐlter/
  • Hyphenation: fil‧ter

Noun

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fìlter m (Cyrillic spelling фѝлтер)

  1. filter

Swedish

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Swedish Wikipedia has an article on:
Wikipedia sv

Pronunciation

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Noun

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filter n

  1. a filter (similar senses to English)

Declension

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Declension of filter 
Singular Plural
Indefinite Definite Indefinite Definite
Nominative filter filtret filter filtren
Genitive filters filtrets filters filtrens

Derived terms

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References

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Anagrams

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