# δ

Иди на навигацију Иди на претрагу

Δ, ,

 δ U+03B4, δ GREEK SMALL LETTER DELTA
 ← γ[U+03B3] Greek and Coptic ε →[U+03B5]

## Translingual

### Symbol

δ

1. (mathematics) A (path-dependent, inexact) differential.
2. (mathematics) A small number, usually accompanied by ε.
• For any ${\displaystyle \epsilon >0}$, there is a ${\displaystyle \delta }$${\displaystyle >0}$
3. (mathematics) Kronecker delta or Dirac delta.

## Ancient Greek

### Etymology

Derived from its majuscule counterpart Δ, from the Phoenician letter 𐤃, dalet.

### Letter

δ (d) (lowercase, uppercase Δ)

1. Lower case delta (δέλτα), the fourth letter of Greek alphabet. It represented in Ancient Greek a voiced dental plosive: /d/ and in modern Greek a voiced dental fricative: /ð/. It is preceded by γ and followed by ε.

#### Derived terms

This appendix explains characters written in the Грчки текст.

This article lists, for Standard Modern Greek, the 24 letters of the alphabet, the diacritical marks, punctuation marks and additional, rarely found, archaic letters some of which are still used today.

## Alphabet

English Greek u/c l/c English Greek u/c l/c
1 alpha άλφα Α α       13 nu νι Ν ν
2 beta βήτα Β β 14 xi ξι Ξ ξ
3 gamma γάμα Γ γ 15 omicron όμικρον Ο ο
4 delta δέλτα Δ δ 16 pi πι Π π
5 epsilon έψιλον Ε ε 17 rho ρο Ρ ρ
6 zeta ζήτα Ζ ζ 18 sigma σίγμα Σ σ
7 eta ήτα Η η 19 tau ταυ Τ τ
8 theta θήτα Θ θ 20 upsilon ύψιλον Υ υ
9 iota γιώτα Ι ι 21 phi φι Φ φ
10 kappa κάππα Κ κ 22 chi χι Χ χ
11 lambda λάμδα Λ λ 23 psi ψι Ψ ψ
12 mu μι Μ μ 24 omega ωμέγα Ω ω

## Diacritics

Since the introduction of the monotonic system of spelling in 1982 there have only been two diacritics in everyday writing: the accent  ΄  (the τόνος) and the diaeresis  ¨  (the διαλυτικά), occasionally these are combined  ΅  as in καΐκι (kaḯki). In general, every word of more than one syllable will be stressed on one of the last three syllables, and this will be marked with an accent.

Greek has two other marks used when writing Greek numbers: the numeral sign  ʹ  (eg Δʹ = 4) and the lower numeral sign  ͵  (eg ͵Δ = 4,000)

## Variant letters

English Greek
turned iota γιώτα
final sigma σίγμα ς

Called σίγμα τελικό (sígma telikó, final sigma), this letter is only used as the final letter of a word.

## Archaic letters

Letters which are no longer used in Modern Greek or have special uses.

English Greek u/c l/c notes
digamma δίγαμμα Ϝ ϝ the Greek number Ϝ΄ (= 6).
pamphylian digamma δίγαμμα Ͷ ͷ
stigma στίγμα Ϛ ϛ the Greek number Ϛ΄ (= 6).
heta ήτα Ͱ ͱ
yot γιοτ Ϳ ϳ
san σαν Ϻ ϻ
koppa κόππα Ϟ ϟ the Greek number Ϟ΄ (= 90).
old koppa κόππα Ϙ ϙ the Greek number Ϙ΄ (= 90).
sampi σαμπί Ϡ ϡ the Greek number Ϡ΄ (= 900).
old sampi σαμπί Ͳ ͳ the Greek number Ͳ΄ (= 900).
sho σω Ϸ ϸ

## Unicode

Code16    Code10    Result Description
U+0374 Alt+884 ʹ Greek Numeral Sign
U+0375 Alt+885 ͵ Greek Lower Numeral Sign
U+(0376-0379) are undefined
U+037A Alt+890 ͺ Greek Ypogegrammeni (iota subscript)
U+037B Alt+891 ͻ Greek Small Reversed Lunate Sigma Symbol
U+037C Alt+892 ͼ Greek Small Dotted Lunate Sigma Symbol
U+037D Alt+893 ͽ Greek Small Reversed Dotted Lunate Sigma Symbol
U+037E Alt+894 ; Greek Question Mark
U+037F Alt+895 Ϳ Greek Capital Letter Yot
U+(0380-0383) are undefined
U+0384 Alt+900 ΄ Greek Tonos (acute accent)
U+0385 Alt+901 ΅ Greek Dialytika Tonos (diaeresis + accent)
U+0386 Alt+902 Ά Greek Capital Letter Alpha with Tonos
U+0387 Alt+903 · Greek Ano Teleia (Raised point)
U+0388 Alt+904 Έ Greek Capital Letter Epsilon with Tonos
U+0389 Alt+905 Ή Greek Capital Letter Eta with Tonos
U+038A Alt+906 Ί Greek Capital Letter Iota with Tonos
U+038B is undefined
U+038C Alt+908 Ό Greek Capital Letter Omicron with Tonos
U+038D is undefined
U+038E Alt+910 Ύ Greek Capital Letter Upsilon with Tonos
U+038F Alt+911 Ώ Greek Capital Letter Omega with Tonos
U+0390 Alt+912 ΐ Greek Small Letter Iota with Dialitika and Tonos
U+0391 Alt+913 Α Greek Capital Letter Alpha
U+0392 Alt+914 Β Greek Capital Letter Beta
U+0393 Alt+915 Γ Greek Capital Letter Gamma
U+0394 Alt+916 Δ Greek Capital Letter Delta
U+0395 Alt+917 Ε Greek Capital Letter Epsilon
U+0396 Alt+918 Ζ Greek Capital Letter Zeta
U+0397 Alt+919 Η Greek Capital Letter Eta
U+0398 Alt+920 Θ Greek Capital Letter Theta
U+0399 Alt+921 Ι Greek Capital Letter Iota
U+039A Alt+922 Κ Greek Capital Letter Kappa
U+039B Alt+923 Λ Greek Capital Letter Lambda
U+039C Alt+924 Μ Greek Capital Letter Mu
U+039D Alt+925 Ν Greek Capital Letter Nu
U+039E Alt+926 Ξ Greek Capital Letter Xi
U+039F Alt+927 Ο Greek Capital Letter Omicron
U+03A0 Alt+928 Π Greek Capital Letter Pi
U+03A1 Alt+929 Ρ Greek Capital Letter Rho
U+03A2 is undefined
U+03A3 Alt+931 Σ Greek Capital Letter Sigma
U+03A4 Alt+932 Τ Greek Capital Letter Tau
U+03A5 Alt+933 Υ Greek Capital Letter Upsilon
U+03A6 Alt+934 Φ Greek Capital Letter Phi
U+03A7 Alt+935 Χ Greek Capital Letter Chi
U+03A8 Alt+936 Ψ Greek Capital Letter Psi
U+03A9 Alt+937 Ω Greek Capital Letter Omega
U+03AA Alt+937 Ϊ Greek Capital Letter Iota with Dialytika
U+03AB Alt+939 Ϋ Greek Capital Letter Upsilon with Dialitika
U+03AC Alt+940 ά Greek Small Letter Alpha with Tonos
U+03AD Alt+941 έ Greek Small Letter Epsilon with Tonos
U+03AE Alt+942 ή Greek Small Letter Eta with Tonos
U+03AF Alt+943 ί Greek Small Letter Iota with Tonos
U+03B0 Alt+944 ΰ Greek Small Letter Upsilon with Dialitika and Tonos
U+03B1 Alt+945 α Greek Small Letter Alpha
U+03B2 Alt+946 β Greek Small Letter Beta
U+03B3 Alt+947 γ Greek Small Letter Gamma
U+03B4 Alt+948 δ Greek Small Letter Delta
U+03B5 Alt+949 ε Greek Small Letter Epsilon
U+03B6 Alt+950 ζ Greek Small Letter Zeta
U+03B7 Alt+951 η Greek Small Letter Eta
U+03B8 Alt+952 θ Greek Small Letter Theta
U+03B9 Alt+953 ι Greek Small Letter Iota
U+03BA Alt+954 κ Greek Small Letter Kappa
U+03BB Alt+955 λ Greek Small Letter Lambda
U+03BC Alt+956 μ Greek Small Letter Mu
U+03BD Alt+957 ν Greek Small Letter Nu
U+03BE Alt+958 ξ Greek Small Letter Xi
U+03BF Alt+959 ο Greek Small Letter Omicron
U+03C0 Alt+960 π Greek Small Letter Pi
U+03C1 Alt+961 ρ Greek Small Letter Rho
U+03C2 Alt+962 ς Greek Small Letter Final Sigma
U+03C3 Alt+963 σ Greek Small Letter Sigma
U+03C4 Alt+964 τ Greek Small Letter Tau
U+03C5 Alt+965 υ Greek Small Letter Upsilon
U+03C6 Alt+966 φ Greek Small Letter Phi
U+03C7 Alt+967 χ Greek Small Letter Chi
U+03C8 Alt+968 ψ Greek Small Letter Psi
U+03C9 Alt+969 ω Greek Small Letter Omega
U+03CA Alt+970 ϊ Greek Small Letter Iota with Dialytika
U+03CB Alt+971 ϋ Greek Small Letter Upsilon with Dialytika
U+03CC Alt+972 ό Greek Small Letter Omicron with Tonos
U+03CD Alt+973 ύ Greek Small Letter Upsilon with Tonos
U+03CE Alt+974 ώ Greek Small Letter Omega with Tonos
U+03CF is undefined
U+03D0 Alt+976 ϐ Greek Beta Symbol
U+03D1 Alt+977 ϑ Greek Theta Symbol
U+03D2 Alt+978 ϒ Greek Upsilon with hook Symbol
U+03D3 Alt+979 ϓ Greek Upsilon with acute and hook Symbol
U+03D4 Alt+980 ϔ Greek Upsilon with diaeresis and hook Symbol
U+03D5 Alt+981 ϕ Greek Phi Symbol
U+03D6 Alt+982 ϖ Greek Pi Symbol
U+03D7 Alt+983 ϗ Greek Kai Symbol (equiv to &)
U+03D8 Alt+984 Ϙ Greek Letter Archaic Koppa
U+03D9 Alt+985 ϙ Greek Small Letter Archaic Koppa
U+03DA Alt+986 Ϛ Greek Letter Stigma
U+03DB Alt+987 ϛ Greek Small Letter Stigma
U+03DC Alt+988 Ϝ Greek Letter Digamma
U+03DD Alt+989 ϝ Greek Small Letter Digamma
U+03DE Alt+990 Ϟ Greek Letter Koppa
U+03DF Alt+991 ϟ Greek Small Letter Koppa
U+03E0 Alt+992 Ϡ Greek Letter Sampi
U+03E1 Alt+993 ϡ Greek Small Letter Sampi
U+(03E2-03EF) are Coptic letters
U+03F0 Alt+1008 ϰ Greek Kappa Symbol
U+03F1 Alt+1009 ϱ Greek Rho Symbol
U+03F2 Alt+1010 ϲ Greek Lunate Sigma Symbol
U+03F3 Alt+1011 ϳ Greek Letter Yot
U+03F4 Alt+1012 ϴ Greek Capital Theta Symbol
U+03F5 Alt+1013 ϵ Greek Lunate Epsilon Symbol
U+03F6 Alt+1014 ϶ Greek Reversed Lunate Epsilon Symbol
U+03F7 Alt+1015 Ϸ Greek Capital Letter Sho
U+03F8 Alt+1016 ϸ Greek Small Letter Sho
U+03F9 Alt+1017 Ϲ Greek Capital Lunate Sigma Symbol
U+03FA Alt+1018 Ϻ Greek Capital Letter San
U+03FB Alt+1019 ϻ Greek Small Letter San
U+03FC Alt+1020 ϼ Greek Rho with stroke Symbol
U+03FD Alt+1021 Ͻ Greek Capital Reversed Lunate Sigma Symbol
U+03FE Alt+1022 Ͼ Greek Capital Dotted Lunate Sigma Symbol
U+03FF Alt+1023 Ͽ Greek Capital Reversed Dotted Lunate Sigma Symbol
U+2129 Alt+8489 Turned Greek Small Letter Iota

## Greek

### Etymology 1

From the Ancient Greek letter.

### Letter

δ (d) (lowercase, uppercase Δ)

1. Lower case delta (δέλτα), the fourth letter of Greek alphabet. It represents in modern Greek a voiced dental fricative: /ð/. It is preceded by γ and followed by ε.

This appendix explains characters written in the Грчки текст.

This article lists, for Standard Modern Greek, the 24 letters of the alphabet, the diacritical marks, punctuation marks and additional, rarely found, archaic letters some of which are still used today.

## Alphabet

English Greek u/c l/c English Greek u/c l/c
1 alpha άλφα Α α       13 nu νι Ν ν
2 beta βήτα Β β 14 xi ξι Ξ ξ
3 gamma γάμα Γ γ 15 omicron όμικρον Ο ο
4 delta δέλτα Δ δ 16 pi πι Π π
5 epsilon έψιλον Ε ε 17 rho ρο Ρ ρ
6 zeta ζήτα Ζ ζ 18 sigma σίγμα Σ σ
7 eta ήτα Η η 19 tau ταυ Τ τ
8 theta θήτα Θ θ 20 upsilon ύψιλον Υ υ
9 iota γιώτα Ι ι 21 phi φι Φ φ
10 kappa κάππα Κ κ 22 chi χι Χ χ
11 lambda λάμδα Λ λ 23 psi ψι Ψ ψ
12 mu μι Μ μ 24 omega ωμέγα Ω ω

## Diacritics

Since the introduction of the monotonic system of spelling in 1982 there have only been two diacritics in everyday writing: the accent  ΄  (the τόνος) and the diaeresis  ¨  (the διαλυτικά), occasionally these are combined  ΅  as in καΐκι (kaḯki). In general, every word of more than one syllable will be stressed on one of the last three syllables, and this will be marked with an accent.

Greek has two other marks used when writing Greek numbers: the numeral sign  ʹ  (eg Δʹ = 4) and the lower numeral sign  ͵  (eg ͵Δ = 4,000)

## Variant letters

English Greek
turned iota γιώτα
final sigma σίγμα ς

Called σίγμα τελικό (sígma telikó, final sigma), this letter is only used as the final letter of a word.

## Archaic letters

Letters which are no longer used in Modern Greek or have special uses.

English Greek u/c l/c notes
digamma δίγαμμα Ϝ ϝ the Greek number Ϝ΄ (= 6).
pamphylian digamma δίγαμμα Ͷ ͷ
stigma στίγμα Ϛ ϛ the Greek number Ϛ΄ (= 6).
heta ήτα Ͱ ͱ
yot γιοτ Ϳ ϳ
san σαν Ϻ ϻ
koppa κόππα Ϟ ϟ the Greek number Ϟ΄ (= 90).
old koppa κόππα Ϙ ϙ the Greek number Ϙ΄ (= 90).
sampi σαμπί Ϡ ϡ the Greek number Ϡ΄ (= 900).
old sampi σαμπί Ͳ ͳ the Greek number Ͳ΄ (= 900).
sho σω Ϸ ϸ

## Unicode

Code16    Code10    Result Description
U+0374 Alt+884 ʹ Greek Numeral Sign
U+0375 Alt+885 ͵ Greek Lower Numeral Sign
U+(0376-0379) are undefined
U+037A Alt+890 ͺ Greek Ypogegrammeni (iota subscript)
U+037B Alt+891 ͻ Greek Small Reversed Lunate Sigma Symbol
U+037C Alt+892 ͼ Greek Small Dotted Lunate Sigma Symbol
U+037D Alt+893 ͽ Greek Small Reversed Dotted Lunate Sigma Symbol
U+037E Alt+894 ; Greek Question Mark
U+037F Alt+895 Ϳ Greek Capital Letter Yot
U+(0380-0383) are undefined
U+0384 Alt+900 ΄ Greek Tonos (acute accent)
U+0385 Alt+901 ΅ Greek Dialytika Tonos (diaeresis + accent)
U+0386 Alt+902 Ά Greek Capital Letter Alpha with Tonos
U+0387 Alt+903 · Greek Ano Teleia (Raised point)
U+0388 Alt+904 Έ Greek Capital Letter Epsilon with Tonos
U+0389 Alt+905 Ή Greek Capital Letter Eta with Tonos
U+038A Alt+906 Ί Greek Capital Letter Iota with Tonos
U+038B is undefined
U+038C Alt+908 Ό Greek Capital Letter Omicron with Tonos
U+038D is undefined
U+038E Alt+910 Ύ Greek Capital Letter Upsilon with Tonos
U+038F Alt+911 Ώ Greek Capital Letter Omega with Tonos
U+0390 Alt+912 ΐ Greek Small Letter Iota with Dialitika and Tonos
U+0391 Alt+913 Α Greek Capital Letter Alpha
U+0392 Alt+914 Β Greek Capital Letter Beta
U+0393 Alt+915 Γ Greek Capital Letter Gamma
U+0394 Alt+916 Δ Greek Capital Letter Delta
U+0395 Alt+917 Ε Greek Capital Letter Epsilon
U+0396 Alt+918 Ζ Greek Capital Letter Zeta
U+0397 Alt+919 Η Greek Capital Letter Eta
U+0398 Alt+920 Θ Greek Capital Letter Theta
U+0399 Alt+921 Ι Greek Capital Letter Iota
U+039A Alt+922 Κ Greek Capital Letter Kappa
U+039B Alt+923 Λ Greek Capital Letter Lambda
U+039C Alt+924 Μ Greek Capital Letter Mu
U+039D Alt+925 Ν Greek Capital Letter Nu
U+039E Alt+926 Ξ Greek Capital Letter Xi
U+039F Alt+927 Ο Greek Capital Letter Omicron
U+03A0 Alt+928 Π Greek Capital Letter Pi
U+03A1 Alt+929 Ρ Greek Capital Letter Rho
U+03A2 is undefined
U+03A3 Alt+931 Σ Greek Capital Letter Sigma
U+03A4 Alt+932 Τ Greek Capital Letter Tau
U+03A5 Alt+933 Υ Greek Capital Letter Upsilon
U+03A6 Alt+934 Φ Greek Capital Letter Phi
U+03A7 Alt+935 Χ Greek Capital Letter Chi
U+03A8 Alt+936 Ψ Greek Capital Letter Psi
U+03A9 Alt+937 Ω Greek Capital Letter Omega
U+03AA Alt+937 Ϊ Greek Capital Letter Iota with Dialytika
U+03AB Alt+939 Ϋ Greek Capital Letter Upsilon with Dialitika
U+03AC Alt+940 ά Greek Small Letter Alpha with Tonos
U+03AD Alt+941 έ Greek Small Letter Epsilon with Tonos
U+03AE Alt+942 ή Greek Small Letter Eta with Tonos
U+03AF Alt+943 ί Greek Small Letter Iota with Tonos
U+03B0 Alt+944 ΰ Greek Small Letter Upsilon with Dialitika and Tonos
U+03B1 Alt+945 α Greek Small Letter Alpha
U+03B2 Alt+946 β Greek Small Letter Beta
U+03B3 Alt+947 γ Greek Small Letter Gamma
U+03B4 Alt+948 δ Greek Small Letter Delta
U+03B5 Alt+949 ε Greek Small Letter Epsilon
U+03B6 Alt+950 ζ Greek Small Letter Zeta
U+03B7 Alt+951 η Greek Small Letter Eta
U+03B8 Alt+952 θ Greek Small Letter Theta
U+03B9 Alt+953 ι Greek Small Letter Iota
U+03BA Alt+954 κ Greek Small Letter Kappa
U+03BB Alt+955 λ Greek Small Letter Lambda
U+03BC Alt+956 μ Greek Small Letter Mu
U+03BD Alt+957 ν Greek Small Letter Nu
U+03BE Alt+958 ξ Greek Small Letter Xi
U+03BF Alt+959 ο Greek Small Letter Omicron
U+03C0 Alt+960 π Greek Small Letter Pi
U+03C1 Alt+961 ρ Greek Small Letter Rho
U+03C2 Alt+962 ς Greek Small Letter Final Sigma
U+03C3 Alt+963 σ Greek Small Letter Sigma
U+03C4 Alt+964 τ Greek Small Letter Tau
U+03C5 Alt+965 υ Greek Small Letter Upsilon
U+03C6 Alt+966 φ Greek Small Letter Phi
U+03C7 Alt+967 χ Greek Small Letter Chi
U+03C8 Alt+968 ψ Greek Small Letter Psi
U+03C9 Alt+969 ω Greek Small Letter Omega
U+03CA Alt+970 ϊ Greek Small Letter Iota with Dialytika
U+03CB Alt+971 ϋ Greek Small Letter Upsilon with Dialytika
U+03CC Alt+972 ό Greek Small Letter Omicron with Tonos
U+03CD Alt+973 ύ Greek Small Letter Upsilon with Tonos
U+03CE Alt+974 ώ Greek Small Letter Omega with Tonos
U+03CF is undefined
U+03D0 Alt+976 ϐ Greek Beta Symbol
U+03D1 Alt+977 ϑ Greek Theta Symbol
U+03D2 Alt+978 ϒ Greek Upsilon with hook Symbol
U+03D3 Alt+979 ϓ Greek Upsilon with acute and hook Symbol
U+03D4 Alt+980 ϔ Greek Upsilon with diaeresis and hook Symbol
U+03D5 Alt+981 ϕ Greek Phi Symbol
U+03D6 Alt+982 ϖ Greek Pi Symbol
U+03D7 Alt+983 ϗ Greek Kai Symbol (equiv to &)
U+03D8 Alt+984 Ϙ Greek Letter Archaic Koppa
U+03D9 Alt+985 ϙ Greek Small Letter Archaic Koppa
U+03DA Alt+986 Ϛ Greek Letter Stigma
U+03DB Alt+987 ϛ Greek Small Letter Stigma
U+03DC Alt+988 Ϝ Greek Letter Digamma
U+03DD Alt+989 ϝ Greek Small Letter Digamma
U+03DE Alt+990 Ϟ Greek Letter Koppa
U+03DF Alt+991 ϟ Greek Small Letter Koppa
U+03E0 Alt+992 Ϡ Greek Letter Sampi
U+03E1 Alt+993 ϡ Greek Small Letter Sampi
U+(03E2-03EF) are Coptic letters
U+03F0 Alt+1008 ϰ Greek Kappa Symbol
U+03F1 Alt+1009 ϱ Greek Rho Symbol
U+03F2 Alt+1010 ϲ Greek Lunate Sigma Symbol
U+03F3 Alt+1011 ϳ Greek Letter Yot
U+03F4 Alt+1012 ϴ Greek Capital Theta Symbol
U+03F5 Alt+1013 ϵ Greek Lunate Epsilon Symbol
U+03F6 Alt+1014 ϶ Greek Reversed Lunate Epsilon Symbol
U+03F7 Alt+1015 Ϸ Greek Capital Letter Sho
U+03F8 Alt+1016 ϸ Greek Small Letter Sho
U+03F9 Alt+1017 Ϲ Greek Capital Lunate Sigma Symbol
U+03FA Alt+1018 Ϻ Greek Capital Letter San
U+03FB Alt+1019 ϻ Greek Small Letter San
U+03FC Alt+1020 ϼ Greek Rho with stroke Symbol
U+03FD Alt+1021 Ͻ Greek Capital Reversed Lunate Sigma Symbol
U+03FE Alt+1022 Ͼ Greek Capital Dotted Lunate Sigma Symbol
U+03FF Alt+1023 Ͽ Greek Capital Reversed Dotted Lunate Sigma Symbol
U+2129 Alt+8489 Turned Greek Small Letter Iota

### Noun

δ (df (indeclinable)

1. Abbreviation of δεσποινίς (despoinís): Miss
##### Coordinate terms
• κ (k, Mr, Mrs)
• κα (ka, Mrs)