"Ω" redirects here. For the unit of electrical resistance, see Ohm.
This article is about the Greek letter. For the Cyrillic letter, see Omega (Cyrillic). For the Latin letter, see Latin omega.
For other uses, see Omega (disambiguation).
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Greek alphabet
Αα
Alpha
Νν
Nu
Ββ
Beta
Ξξ
Xi
Γγ
Gamma
Οο
Omicron
Δδ
Delta
Ππ
Pi
Εε
Epsilon
Ρρ
Rho
Ζζ
Zeta
Σσς
Sigma
Ηη
Eta
Ττ
Tau
Θθ
Theta
Υυ
Upsilon
Ιι
Iota
Φφ
Phi
Κκ
Kappa
Χχ
Chi
Λλ
Lambda
Ψψ
Psi
Μμ
Mu
Ωω
Omega
History
Archaic local variants
Ϝ
Ͱ
Ϻ
Ϙ
Ͳ
Ͷ
tsan
digamma
Diacritics
Ligatures
Numerals
ϛ (6)
ϟ (90)
ϡ (900)
Use in other languages
Bactrian
Coptic
Albanian
Related topics
Use as scientific symbols
Category
v
t
e
Omega (US: /oʊˈmeɪɡə,-ˈmɛɡə,-ˈmiːɡə/, UK: /ˈoʊmɪɡə/;[1] uppercase Ω, lowercase ω; Ancient Greek ὦ, later ὦ μέγα, Modern Greek ωμέγα) is the twenty-fourth and last letter in the Greek alphabet. In the Greek numeric system/isopsephy (gematria), it has a value of 800. The word literally means "great O" (ō mega, mega meaning "great"), as opposed to omicron, which means "little O" (o mikron, micron meaning "little").[2]
In phonetic terms, the Ancient Greek Ω represented a long open-mid back rounded vowel IPA:[ɔː], comparable to the "aw" of the English word raw in dialects without the cot–caught merger, in contrast to omicron which represented the close-mid back rounded vowel IPA:[o] , and the digraph ου which represented the long close-mid back rounded vowel IPA:[oː]. In Modern Greek, both omega and omicron represent the mid back rounded vowel IPA:[o̞] or IPA:[ɔ̝]. The letter omega is transliterated into a Latin-script alphabet as ō or simply o.
As the final letter in the Greek alphabet, omega is often used to denote the last, the end, or the ultimate limit of a set, in contrast to alpha, the first letter of the Greek alphabet; see Alpha and Omega.
^Wells, John C. (2008). "omega". Longman Pronunciation Dictionary (3rd ed.). Longman. ISBN 978-1-4058-8118-0.
Omega (US: /oʊˈmeɪɡə, -ˈmɛɡə, -ˈmiːɡə/, UK: /ˈoʊmɪɡə/; uppercase Ω, lowercase ω; Ancient Greek ὦ, later ὦ μέγα, Modern Greek ωμέγα) is the twenty-fourth...
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Omega Psi Phi Fraternity, Inc. (ΩΨΦ) is a historically African-American fraternity. The fraternity was founded on November 17, 1911, the first at a historically...
The omega baryons are a family of subatomic hadron (a baryon) particles that are represented by the symbol Ω and are either neutral or have a +2, +1 or...
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The Order of Omega is an undergraduate Greek society recognizing "fraternity men and women who have attained a high standard of leadership in inter-fraternity...
The Omega Man (stylized as The Ωmega Man) is a 1971 American post-apocalyptic action film directed by Boris Sagal and starring Charlton Heston as a survivor...
Omega Mart (stylized as Ωmega Mart) is an interactive art installation created by American arts company Meow Wolf and located in the AREA15 complex in...
Omega X (Korean: 오메가엑스, stylized in all caps) is a South Korean boy band formed in 2021. The group consists of 11 members: Jaehan, Hwichan, Sebin, Hangyeom...
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