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Letter Corresponding
Phoenician
letter
Name Transliteration1 Pronunciation Numeric value
English Ancient
Greek
Medieval
Greek
(polytonic)
Modern
Greek
Ancient
Greek
Modern
Greek
Classical
Ancient
Greek
Modern
Greek
Α α Aleph Aleph Alpha ἄλφα άλφα a [a] [aː] [a] 1
Β β
ϐ
(alternate2)
Beth Beth Beta βῆτα βήτα b v [b] [v] 2
Γ γ Gimel Gimel Gamma γάμμα γάμμα
γάμα
g gh, g, y [g] [ɣ], [ʝ] 3
Δ δ Daleth Daleth Delta δέλτα δέλτα d d, dh [d] [ð] 4
Ε ε
ϵ ϶
(alternate)
He He Epsilon εἶ ἒ ψιλόν έψιλον e [e] 5
Ζ ζ Zayin Zayin Zeta ζήτα ζήτα z [zd]
(or [dz]?)
later [zː]
[z] 7
Η η Heth Heth Eta ἦτα ήτα e, ē i [ɛː] [i] 8
Θ θ
ϴ ϑ
(alternate)
Teth Teth Theta θῆτα θήτα th [tʰ] [θ] 9
Ι ι Yodh Yodh Iota ἰῶτα ιώτα
γιώτα
i [i] [iː] [i], [ʝ] 10
Κ κ
ϰ ϗ
(alternate)
Kaph Kaph Kappa κάππα κάππα
κάπα
k [k] [k], [c] 20
Λ λ Lamedh Lamedh Lambda λάβδα λάμβδα λάμδα
λάμβδα
l [l] 30
Μ μ Mem Mem Mu μῦ μι
μυ
m [m] 40
Ν ν Nun Nun Nu νῦ νι
νυ
n [n] 50
Ξ ξ Samekh Samekh Xi ξεῖ ξῖ ξι x x, ks [ks] 60
Ο ο Ayin 'Ayin Omicron οὖ ὂ μικρόν όμικρον o [o] 70
Π π
ϖ
(alternate)
Pe Pe Pi πεῖ πῖ πι p [p] 80
Ρ ρ
ϱ
(alternate)
Res Resh Rho ῥῶ ρω r (: rh) r [r], [r̥] [r] 100
Σ σ
Ϲ ϲ
Ͻ ͻ
ς
(alternate3)
Sin Sin Sigma σῖγμα σίγμα s [s] 200
Τ τ Taw Taw Tau ταῦ ταυ t [t] 300
Υ υ
ϒ
(alternate)
Waw Waw Upsilon ὓ ψιλόν ύψιλον u, y y, v, f [y] [yː]
(earlier [ʉ] [ʉː])
[i] 400
Φ φ
ϕ
(alternate)
origin disputed
(see text)
Phi φεῖ φῖ φι ph f [pʰ] [f] 500
Χ χ Chi χεῖ χῖ χι ch ch, kh [kʰ] [x], [ç] 600
Ψ ψ Psi ψεῖ ψῖ ψι ps [ps] 700
Ω ω Ayin 'Ayin Omega ὦ μέγα ωμέγα o, ō o [ɔː] [o] 800
  1. For details and different transliteration systems see Romanization of Greek.
  2. Used only in the middle of a word.
  3. Used only in the end of a word.

The following letters are not part of the standard Greek alphabet, but were in use in pre-classical times or in certain dialects. The letters digamma, stigma, san, sho, qoppa, and sampi were also used in Greek numerals.

Letter Corresponding
Phoenician
letter
Name Transliteration Pronunciation Numeric value
English Archaic
Greek
 
Later
Greek
(polytonic)
Ϝ ϝ Waw Waw Digamma ϝαῦ δίγαμμα w probably [w] 6
Ϛ ϛ Stigma στῖγμα st [st] 6
Ϻ ϻ Sade Tsade (position)
Sin Sin (name)
San ϻάν σάν s [s] 90
Ϸ ϸ Origin disputed,
possibly Shin Sin
Sho ϸω σχω sh obviously fricative,
but exact value discussed
[ʃː] is proposed
90
Ϟ ϟ
Ϙ ϙ (alternate)
Qoph Qoph Qoppa ϙόππα κόππα q [q] 90
Ϡ ϡ Origin disputed,
possibly Sade Tsade
Sampi δίσιγμα? σαμπῖ ss probably affricate,
but exact value discussed
[sː], [ks], [ts] are proposed
900