See also: Omega, oméga, ómega, and ômega


Ancient Greek Alphabet

Ω ω
Ancient Greek: ὦ μέγα
Wikipedia article on omega


From Middle English, from Ancient Greek (ô) μέγα (méga, large) (omega is a long vowel in Ancient Greek).


  • (UK) IPA(key): /ˈəʊmɛɡə/, /ˈəʊmiːɡə/
  • (US) IPA(key): /oʊˈmɛɡə/, /ˌoʊˈmeɪɡə/
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omega (plural omegas or omegala)

  1. The twenty-fourth letter of the Classical and the Modern Greek alphabet, and the twenty-eighth letter of the Old and the Ancient Greek alphabet, i.e. the last letter of every Greek alphabet. Uppercase version: Ω; lowercase: ω.
    • 2013, Albert Schachter & Fabienne Marchand, "Fresh Light on the Institutions and Religious Life of Thespiai: Sixe New Inscriptions from the Thespiai Survey", page 284 in Paraskevi Martzavou & ‎Nikolaos Papazarkadas (editors), Epigraphical Approaches to the Post-Classical Polis
      The fact that the letter was incised above the line indicates that it is probably an omega.
  2. (often capitalized) The end; the final, last or ultimate in a sequence.
    1978, New International Version, Revelation 22:13
    • I am the Alpha and the Omega, the First and the Last, the Beginning and the End.
    • 2012, FX Moore, Confed: 2721: Xenocide War, page 383
      And there is always the Omega Option. At any time you can go to Manhome, go down to the vaults, lift the black cover on your clone's stasis chamber, and push the black button.
  3. (physics) Angular velocity; symbol: ω.
    • 2013, Issues in General Physics Research: 2013 Edition, page 1084
      The ratio between the rho and omega cross section is obtained.
  4. (slang) An omega male.
  5. (finance) The percentage change in an option value divided by the percentage change in the underlying asset's price.
  6. (fandom slang) In omegaverse fiction, a person of a sexually-submissive (and sometimes secondary) gender/sex that is driven by biology, magic, or other means to bond with an alpha, with males of this type often being able to get pregnant.
    • 2013, Kristina Busse, "Pon Farr, Mpreg, Bonds, and the Rise of the Omegaverse", in Fic: Why Fanfiction Is Taking Over the World (ed. Anne Jamison), page 317:
      Often omegas go into heat and release pheromones that drive alphas wild.
    • 2017, Marianne Gunderson, "What is an omega? Rewriting sex and gender in omegaverse fanfiction", thesis submitted to the University of Oslo, page 5:
      By writing a male character as an omega, experiences of being treated as other in female-coded ways are imagined to be experienced by a character who represents the male norm.
    • 2018, Laura Campillo Arnaiz, "When the Omega Empath Met the Alpha Doctor: An Analysis of Alpha/Beta/Omega Dynamics in the Hannibal Fandom", in The Darker Side of Slash Fan Fiction (ed. Ashton Spacey), page 126:
      Sweet as Peaches on the Tongue can be defined as the typical dark A/B/O story, wherein a rich alpha gentleman (Dr. Hannibal Lecter) comes across a very young, virginal omega (Will Graham) by accident.



  • (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)

Derived termsEdit






omega f (plural omegues)

  1. Omega; the Greek letter Ω (lowercase ω).


Alternative formsEdit


omega f

  1. omega (Greek letter)




  1. Alternative spelling of oomega.


Inflection of omega (Kotus type 13/katiska, no gradation)
nominative omega omegat
genitive omegan omegoiden
partitive omegaa omegoita
illative omegaan omegoihin
singular plural
nominative omega omegat
accusative nom. omega omegat
gen. omegan
genitive omegan omegoiden
partitive omegaa omegoita
inessive omegassa omegoissa
elative omegasta omegoista
illative omegaan omegoihin
adessive omegalla omegoilla
ablative omegalta omegoilta
allative omegalle omegoille
essive omegana omegoina
translative omegaksi omegoiksi
instructive omegoin
abessive omegatta omegoitta
comitative omegoineen
Possessive forms of omega (type katiska)
possessor singular plural
1st person omegani omegamme
2nd person omegasi omeganne
3rd person omegansa



omega m or f (invariable)

  1. omega (letter; scientific symbol)



  • IPA(key): /oˈmeɡa/, [oˈmeɣa]


omega f (plural omegas)

  1. omega; the Greek letter Ω, ω