omega

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omega^¹

/ˈəʊ.mɪ.ɡə/ UK
/əʊˈmiː.ɡə/ UK
/oʊˈmeɪ.ɡə/ US
/oʊˈmɛɡ.ə/ US
/oːˈmeː.ɡɑː/ India, North
/oˈmeː.ɡɑː/ India, South

Rhymes with -ɛɡə, -eɪɡə

Where it comes from

From Middle English, from Ancient Greek ὦ μέγα (ô méga), meaning “great ω” (omega is a long vowel in Ancient Greek).

noun omegas · omegala

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. The fact that the letter was incised above the line indicates that it is probably an omega.
capitalized, often The end; the final, last or ultimate in a sequence. alpha and omega
Angular velocity; symbol: ω. The ratio between the rho and omega cross section is obtained.
Similar: elasticity, lambda
A transfinite ordinal number referring to the next position after ordering a countably infinite set.
slang An omega male.
The percentage change in an option value divided by the percentage change in the underlying asset's price.
slang In omegaverse fiction, a person of a submissive secondary sex driven by biology, magic, or other means to bond with an alpha, with males of this type often being able to get pregnant. Often omegas go into heat and release pheromones that drive alphas wild.

adjective

not comparable, slang Ultimate; of the highest degree. Massive, ineffable. Omega props, dude.

adverb

not comparable, slang Ultimately, most, supremely. Whatever your plan is, I just think this idea's omega stupid. Ain't you got something better?

Omega^²

noun Omegas

Alternative letter-case form of omega

Thesaurus

Closest in meaning: z, lambda, word, mentor, alfa, ending, end-all, terminus, end, finale, conclusion, finish, termination, close, last, deadline

Translations

Every language

noun letter of the Greek alphabet

Español	omega
한국어	오메가 omega
日本語	オメガ omega
中文	歐米伽 /欧米伽 ōumǐgā, 奧米伽 /奥米伽 àomǐgā, 歐米茄 /欧米茄 ōumǐjiā, 俄梅戛 éméijiá, 俄梅格 éméigé, 亞米茄 /亚米茄 yàmǐjiā
Português	ómega
Français	oméga
Deutsch	Omega
Italiano	omega
Ελληνικά	ωμέγα oméga
Română	omega
Русский	оме́га oméga
العربية	أُومِيغَا ʔumīḡā, أُومِيغَا ʔomegā, أُومِيجَا ʔumīgā, أُومِيجَا ʔomegā
עברית	אוֹמֶגָה oméga

noun the end; final or last in a sequence

Deutsch	O

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MLA

"omega." Wiktionary, via Micwyn, micwyn.com/word/omega. Accessed 6 Nov. 2026.

APA

omega. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/omega

Chicago

"omega." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/omega.

BibTeX

@misc{omega_2026,
  title = {omega},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/omega},
  urldate = {2026-11-06}
}