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Wiktionary

delta

See also: DELTA and Delta

Translingual

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Noun

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delta

  1. Alternative letter-case form of Delta of the ICAO/NATO radiotelephony alphabet.

English

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Ancient Greek Alphabet
←
gamma
    →
epsilon
Δ δ
Ancient Greek: δέλτα
Wikipedia article on delta
 delta on Wikipedia
 
Lena River delta (landform at the mouth of a river).

Etymology

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From Ancient Greek δέλτα (délta), borrowed from a Phoenician word for "door", ultimately from Proto-Semitic *dalt-. Doublet of dalet.

  • (river): from the triangular shape of the majuscule Greek letter delta Δ
  • (USSF): from the delta wing, symbol of the USSF, a triangular wing, shaped like the majuscule Greek letter delta Δ

Pronunciation

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  • IPA(key): /ˈdɛltə/, [ˈdɛɫtə]
  • Audio (US):(file)
  • Rhymes: -ɛltə

Noun

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delta (plural deltas)

  2. The fourth letter of the modern Greek alphabet Δ, δ.
  4. A landform at the mouth of a river where it empties into a body of water.
    Nile Delta
  5. (international standards) Alternative letter-case form of Delta from the NATO/ICAO Phonetic Alphabet.
  6. (mathematics, physics, engineering) The symbol Δ; A change in a quantity, likely from "d" for "difference".
    ΔV - "delta vee"(change in velocity, used in rocketry and orbital mechanics)
  7. (finance) The rate of change in an option value with respect to the underlying asset's price.
  8. (chemistry) A value in delta notation indicating the relative abundances of isotopes.
  9. (computing) The set of differences between two versions of a file.
    When you update the file, the system will only save the deltas.
  10. (computing, informal) A small but noticeable effect. Compare epsilon.
    This will slow the main code path down, but only by delta.
  11. (surveying) The angle subtended at the center of a circular arc.
  12. A type of cargo bike that has one wheel in front and two in back.
  13. (electrical, often attributive) The closed figure produced by connecting three coils or circuits successively, end for end, especially in a three-phase system.
    delta winding; delta connection; delta current
  14. (US, military, U.S. Space Force) A military unit, nominally headed by a colonel, equivalent to a USAF operations wing, or an army regiment.
  15. (astronomy) a star that is usually the fourth brightest of a constellation.
  16. (physics) one of four baryons consisting of up and down quarks with a combined spin of 3/2: Δ++ (uuu), Δ+ (uud), Δ0 (udd), or Δ− (ddd)
  17. (medicine) Short for delta variant. (variant of the SARS-CoV-2 virus)

Synonyms

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  • (USSF): garrison (a support wing equivalent)

Hypernyms

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  • (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)
  • (particle physics): baryon; resonance

Derived terms

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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.
Translations to be checked

See also

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Verb

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delta (third-person singular simple present deltas, present participle deltaing, simple past and past participle deltaed)

  1. (cryptography) To calculate the differences between the characters in an enciphered text and the characters a fixed number of positions previous.
    • 2007, B. J. Copeland, “Tunny and Colossus: Breaking the Lorenz Schlüsselzusatz traffic”, in Karl de Leeuw, Jan Bergstra, editors, The History of Information Security: A Comprehensive Handbook, Amsterdam: Elsevier, →ISBN, page 458:
      Turingery worked on deltaed key to produce the deltaed contribution of the chi-wheels. Turing's discovery that delta-ing would reveal information otherwise hidden was essential to the developments that followed.
  2. (computing) To compare two versions of the same file in order to determine where they differ (where a programmer has made edits).
    • 1992, Israel Silverberg, Source File Management With SCCS, Englewood Cliffs, NJ: Prentice Hall, →ISBN, page 166:
      The primary function of this command is to delta the product version file (if it has been retrieved for edit). However, prior to deltaing the product version file, the work source tree is searched to verify that no other source files are still waiting to be deltaed.

Anagrams

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Asturian

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Etymology

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From Ancient Greek δέλτα (délta).

Noun

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delta f (plural deltes)

  1. delta (Greek letter)

Noun

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delta m (plural deltes)

  1. delta (landform at the mouth of a river)

Catalan

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Etymology

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Borrowed from Ancient Greek δέλτα (délta).

Pronunciation

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Noun

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delta f (plural deltes)

  1. delta; the Greek letter Δ (lowercase δ)
  2. (geography) a delta

Derived terms

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Czech

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Greek letter
Δδ Previous: gama
Next: epsilon

Pronunciation

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Etymology 1

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Borrowed from Ancient Greek δέλτα (délta), which is probably of Semitic origin.[1]

Noun

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delta n (indeclinable)

  1. Delta (Greek letter Δ)
  2. (physics) kind of rays consisting of secondary electrons with enough energy to escape a significant distance away from the primary radiation beam and produce further ionization (delta ray)

Adjective

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delta (indeclinable)

  1. having the shape of the Greek letter Δ
    delta křídlo ― delta wing

Etymology 2

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Borrowed from Ancient Greek δέλτα (délta). Originally used for the delta of the Nile, because its forked shape resembled the Greek letter Δ. The word is probably of Semitic origin.[1]

Noun

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delta f (related adjective deltový)

  1. (geography) delta (forked mouth of a river)
Declension
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Declension of delta (hard feminine)
singular plural
nominative delta delty
genitive delty delt
dative deltě deltám
accusative deltu delty
vocative delto delty
locative deltě deltách
instrumental deltou deltami

References

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  1. ↑ 1.0 1.1 Rejzek, Jiří (2015) “delta”, in Český etymologický slovník [Czech Etymological Dictionary] (in Czech), 3rd (revised and expanded) edition, Praha: LEDA, →ISBN, page 137

Further reading

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  • “delta”, in Příruční slovník jazyka českého (in Czech), 1935–1957
  • “delta”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989

Anagrams

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Danish

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Danish Wikipedia has an article on:
Wikipedia da

Etymology

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From Ancient Greek δέλτα (délta).

Noun

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delta n (singular definite deltaet, plural indefinite deltaer)

  1. a river delta
  2. delta (the fourth letter of the Greek alphabet, Δ, δ.)

Declension

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Declension of delta
neuter
gender 		Singular Plural
indefinite definite indefinite definite
nominative delta deltaet deltaer deltaerne
genitive deltas deltaets deltaers deltaernes

References

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Dutch

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Dutch Wikipedia has an article on:
Wikipedia nl

Etymology

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Ultimately from Ancient Greek δέλτα (délta). Doublet of dalet.

Pronunciation

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  • IPA(key): /ˈdɛl.taː/
  • Audio:(file)
  • Hyphenation: del‧ta

Noun

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delta f (plural delta's, diminutive deltaatje n)

  1. the Greek letter delta
  2. a river delta, a network of one or more rivers and tributaries pouring out into a larger body of water
    Synonym: rivierdelta

Hypernyms

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Coordinate terms

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Derived terms

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Finnish

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Greek letter
Δδ Previous: gamma
Next: epsilon
 
Finnish Wikipedia has an article on:
Wikipedia fi

Etymology

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From Ancient Greek δέλτα (délta).

Pronunciation

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  • IPA(key): /ˈdelt(ː)ɑ/, [ˈde̞l̪t̪(ː)ɑ̝]
  • Rhymes: -eltɑ
  • Syllabification(key): del‧ta

Noun

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delta

  1. delta (Greek letter)

Declension

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Inflection of delta (Kotus type 9/kala, no gradation)
nominative delta deltat
genitive deltan deltojen
partitive deltaa deltoja
illative deltaan deltoihin
singular plural
nominative delta deltat
accusative nom. delta deltat
gen. deltan
genitive deltan deltojen
deltain rare
partitive deltaa deltoja
inessive deltassa deltoissa
elative deltasta deltoista
illative deltaan deltoihin
adessive deltalla deltoilla
ablative deltalta deltoilta
allative deltalle deltoille
essive deltana deltoina
translative deltaksi deltoiksi
abessive deltatta deltoitta
instructive — deltoin
comitative See the possessive forms below.
Possessive forms of delta (Kotus type 9/kala, no gradation)
first-person singular possessor
singular plural
nominative deltani deltani
accusative nom. deltani deltani
gen. deltani
genitive deltani deltojeni
deltaini rare
partitive deltaani deltojani
inessive deltassani deltoissani
elative deltastani deltoistani
illative deltaani deltoihini
adessive deltallani deltoillani
ablative deltaltani deltoiltani
allative deltalleni deltoilleni
essive deltanani deltoinani
translative deltakseni deltoikseni
abessive deltattani deltoittani
instructive — —
comitative — deltoineni
second-person singular possessor
singular plural
nominative deltasi deltasi
accusative nom. deltasi deltasi
gen. deltasi
genitive deltasi deltojesi
deltaisi rare
partitive deltaasi deltojasi
inessive deltassasi deltoissasi
elative deltastasi deltoistasi
illative deltaasi deltoihisi
adessive deltallasi deltoillasi
ablative deltaltasi deltoiltasi
allative deltallesi deltoillesi
essive deltanasi deltoinasi
translative deltaksesi deltoiksesi
abessive deltattasi deltoittasi
instructive — —
comitative — deltoinesi
first-person plural possessor
singular plural
nominative deltamme deltamme
accusative nom. deltamme deltamme
gen. deltamme
genitive deltamme deltojemme
deltaimme rare
partitive deltaamme deltojamme
inessive deltassamme deltoissamme
elative deltastamme deltoistamme
illative deltaamme deltoihimme
adessive deltallamme deltoillamme
ablative deltaltamme deltoiltamme
allative deltallemme deltoillemme
essive deltanamme deltoinamme
translative deltaksemme deltoiksemme
abessive deltattamme deltoittamme
instructive — —
comitative — deltoinemme
second-person plural possessor
singular plural
nominative deltanne deltanne
accusative nom. deltanne deltanne
gen. deltanne
genitive deltanne deltojenne
deltainne rare
partitive deltaanne deltojanne
inessive deltassanne deltoissanne
elative deltastanne deltoistanne
illative deltaanne deltoihinne
adessive deltallanne deltoillanne
ablative deltaltanne deltoiltanne
allative deltallenne deltoillenne
essive deltananne deltoinanne
translative deltaksenne deltoiksenne
abessive deltattanne deltoittanne
instructive — —
comitative — deltoinenne
third-person possessor
singular plural
nominative deltansa deltansa
accusative nom. deltansa deltansa
gen. deltansa
genitive deltansa deltojensa
deltainsa rare
partitive deltaansa deltojaan
deltojansa
inessive deltassaan
deltassansa 		deltoissaan
deltoissansa
elative deltastaan
deltastansa 		deltoistaan
deltoistansa
illative deltaansa deltoihinsa
adessive deltallaan
deltallansa 		deltoillaan
deltoillansa
ablative deltaltaan
deltaltansa 		deltoiltaan
deltoiltansa
allative deltalleen
deltallensa 		deltoilleen
deltoillensa
essive deltanaan
deltanansa 		deltoinaan
deltoinansa
translative deltakseen
deltaksensa 		deltoikseen
deltoiksensa
abessive deltattaan
deltattansa 		deltoittaan
deltoittansa
instructive — —
comitative — deltoineen
deltoinensa

Derived terms

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See also

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Further reading

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Anagrams

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French

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Etymology

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From Ancient Greek δέλτα (délta).

Pronunciation

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Noun

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delta m (plural delta or deltas)

  1. delta (Greek letter)

Noun

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delta m (plural deltas)

  1. delta (geographical feature)
    Hypernym: embouchure

Further reading

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Galician

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Etymology

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From Ancient Greek δέλτα (délta).

Noun

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delta m (plural deltas)

  1. delta (Greek letter)
  2. delta (landform at the mouth of a river)

Hungarian

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Etymology

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From Ancient Greek δέλτα (délta).

Pronunciation

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Noun

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delta (plural delták)

  1. delta (Greek letter)
  2. delta (landform at the mouth of a river)

Declension

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Inflection (stem in long/high vowel, back harmony)
singular plural
nominative delta delták
accusative deltát deltákat
dative deltának deltáknak
instrumental deltával deltákkal
causal-final deltáért deltákért
translative deltává deltákká
terminative deltáig deltákig
essive-formal deltaként deltákként
essive-modal — —
inessive deltában deltákban
superessive deltán deltákon
adessive deltánál deltáknál
illative deltába deltákba
sublative deltára deltákra
allative deltához deltákhoz
elative deltából deltákból
delative deltáról deltákról
ablative deltától deltáktól
non-attributive
possessive - singular 		deltáé deltáké
non-attributive
possessive - plural 		deltáéi deltákéi
Possessive forms of delta
possessor single possession multiple possessions
1st person sing. deltám deltáim
2nd person sing. deltád deltáid
3rd person sing. deltája deltái
1st person plural deltánk deltáink
2nd person plural deltátok deltáitok
3rd person plural deltájuk deltáik

Further reading

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  • delta in Bárczi, Géza and László Országh. A magyar nyelv értelmező szótára (“The Explanatory Dictionary of the Hungarian Language”, abbr.: ÉrtSz.). Budapest: Akadémiai Kiadó, 1959–1962. Fifth ed., 1992: →ISBN
  • delta in Nóra Ittzés, editor, A magyar nyelv nagyszótára [A Comprehensive Dictionary of the Hungarian Language] (Nszt.), Budapest: Akadémiai Kiadó, 2006–2031 (work in progress; published a–ez as of 2024).

Icelandic

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Noun

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delta f (genitive singular deltu, nominative plural deltur)

  1. delta (Greek letter)

Declension

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    Declension of delta
f-w1 singular plural
indefinite definite indefinite definite
nominative delta deltan deltur delturnar
accusative deltu deltuna deltur delturnar
dative deltu deltunni deltum deltunum
genitive deltu deltunnar delta deltanna

Indonesian

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Indonesian Wikipedia has an article on:
Wikipedia id

Etymology

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From Ancient Greek δέλτα (délta).

Pronunciation

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  • IPA(key): [ˈdɛlta]
  • Hyphenation: dèl‧ta

Noun

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delta

  1. delta,
    1. The fourth letter of the modern Greek alphabet Δ, δ.
    2. (geography) A landform at the mouth of a river where it empties into a body of water.

Further reading

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Italian

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Italian Wikipedia has an article on:
Wikipedia it

Etymology

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From Ancient Greek δέλτα (délta).

Pronunciation

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Noun

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delta m (invariable)

  1. delta (all senses)

Derived terms

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Anagrams

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Latvian

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Noun

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delta f (4th declension)

  1. delta (Greek letter)
  2. delta (landform at the mouth of a river)

Declension

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Declension of delta (4th declension)
singular (vienskaitlis) plural (daudzskaitlis)
nominative (nominatīvs) delta deltas
accusative (akuzatīvs) deltu deltas
genitive (ģenitīvs) deltas deltu
dative (datīvs) deltai deltām
instrumental (instrumentālis) deltu deltām
locative (lokatīvs) deltā deltās
vocative (vokatīvs) delta deltas

Norwegian Bokmål

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Norwegian Wikipedia has an article on:
Wikipedia no

Etymology 1

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From Ancient Greek δέλτα (délta).

Noun

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delta m (definite singular deltaen, indefinite plural deltaer, definite plural deltaene)

  1. the Greek letter Δ, δ (delta)

Etymology 2

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Noun

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delta n (definite singular deltaet, indefinite plural delta or deltaer, definite plural deltaene)

  1. a river delta
Derived terms
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Etymology 3

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From del (“part”) + ta (“take”); i.e. to take (a) part in something; to partake in something.

Verb

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delta (imperative delta, present tense deltar, passive deltas, simple past deltok, past participle deltatt, present participle deltakende)

  1. to participate; to partake
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References

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Norwegian Nynorsk

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Etymology 1

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From del (“part”) + ta (“take”); i.e. to take (a) part in something.

Alternative forms

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Verb

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delta (present tense deltek or deltar, past tense deltok, past participle delteke or deltatt, passive infinitive delteken, present participle deltakande, imperative delta)

  1. to participate
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Etymology 2

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Norwegian Nynorsk Wikipedia has an article on:
Wikipedia nn

From Ancient Greek δέλτα (délta).

Noun

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delta m (definite singular deltaen, indefinite plural deltaer or deltaar, definite plural deltaene or deltaane)

  2. the Greek letter Δ, δ (delta)

Etymology 3

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Norwegian Nynorsk Wikipedia has an article on:
Wikipedia nn

A specialized use of delta (Etymology 2).

Noun

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delta n (definite singular deltaet, indefinite plural delta, definite plural deltaa)

  2. a river delta
Derived terms
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References

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Polish

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Polish Wikipedia has an article on:
Wikipedia pl

Etymology

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Learned borrowing from Ancient Greek δέλτα (délta), from Phoenician 𐤃 (d /⁠dalet⁠/).

Pronunciation

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Noun

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delta f

  1. delta (Greek letter Δ, δ)
  2. (mathematics, colloquial) discriminant
    Synonym: wyróżnik
  3. (geography) delta (landform at the mouth of a river)
  4. (aeronautics) delta wing

Declension

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Declension of delta
singular plural
nominative delta delty
genitive delty delt
dative delcie deltom
accusative deltę delty
instrumental deltą deltami
locative delcie deltach
vocative delto delty

Derived terms

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adjective

Further reading

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  • delta in Wielki słownik języka polskiego, Instytut Języka Polskiego PAN
  • delta in Polish dictionaries at PWN

Portuguese

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Etymology

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Borrowed from Ancient Greek δέλτα (délta).

Pronunciation

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  • (Brazil) IPA(key): /ˈdɛw.tɐ/ [ˈdɛʊ̯.tɐ]
    • (Southern Brazil) IPA(key): /ˈdɛw.ta/ [ˈdɛʊ̯.ta]

  • Hyphenation: del‧ta

Noun

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delta m (plural deltas)

  1. delta (Greek letter)
  2. delta (landform at the mouth of a river)

Derived terms

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Serbo-Croatian

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Etymology

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From Ancient Greek δέλτα (délta).

Pronunciation

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  • IPA(key): /dêlta/
  • Hyphenation: del‧ta

Noun

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dȅlta f (Cyrillic spelling де̏лта)

  1. delta, the Greek letter Δ, δ

Declension

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Declension of delta
singular plural
nominative dȅlta delte
genitive delte dȇltā
dative delti deltama
accusative deltu delte
vocative delto delte
locative delti deltama
instrumental deltom deltama

Spanish

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Etymology

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Borrowed from Ancient Greek δέλτα (délta).

Pronunciation

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  • IPA(key): /ˈdelta/ [ˈd̪el̪.t̪a]
  • Rhymes: -elta
  • Syllabification: del‧ta

Noun

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delta f (plural deltas)

  1. Greek letter delta

Derived terms

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Noun

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delta m (plural deltas)

  1. (geography) a delta
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Further reading

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Swahili

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Etymology

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Borrowed from English delta.

Pronunciation

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Noun

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delta (n class, plural delta)

  1. delta (landform at the mouth of a river)

Swedish

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Etymology 1

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From Ancient Greek δέλτα (délta).

Noun

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delta n

  1. the Greek letter Δ, δ (delta)
  2. a river delta
Declension
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Declension of delta
nominative genitive
singular indefinite delta deltas
definite deltat deltats
plural indefinite deltan deltans
definite deltana deltanas

Etymology 2

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From del (“part”) +‎ ta(ga) (“take”), i.e. to take part in something. Compare English partake.

Alternative forms

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Pronunciation

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Verb

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delta (present deltar, preterite deltog, supine deltagit, imperative delta)

  1. to participate, to take part
    delta i en demonstration
    participate in a demonstration (protest march)
    1. to attend
      Han deltog i mötet
      He attended (took part in) the meeting
Conjugation
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Conjugation of delta (class 6 strong)
Active Passive
Infinitive delta —
Supine deltagit —
Imperative delta —
Imper. plural1 deltan —
Present Past Present Past
Indicative deltar deltog — —
Ind. plural1 delta deltogo — —
Subjunctive2 delta deltoge — —
Participles
Present participle deltagande
Past participle —
1 Archaic. 2 Dated. See the appendix on Swedish verbs.
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References

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Anagrams

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