# omega

> English word · Noun · IPA /ˈəʊmɪɡə/ · frequency rank #9,927

## Definitions
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.
2. The end; the final, last or ultimate in a sequence.
3. Angular velocity; symbol: ω.
4. A transfinite ordinal number referring to the next position after ordering a countably infinite set.
5. An omega male.
6. The percentage change in an option value divided by the percentage change in the underlying asset's price.
7. 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.

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

## Easily confused with
- **OMG** (https://plainspell.com/en/vs/omega-vs-omg)
- **omen** (https://plainspell.com/en/vs/omega-vs-omen)
- **omer** (https://plainspell.com/en/vs/omega-vs-omer)
- **OMFG** (https://plainspell.com/en/vs/omega-vs-omfg)
- **opera** (https://plainspell.com/en/vs/omega-vs-opera)
- **Ortega** (https://plainspell.com/en/vs/omega-vs-ortega)
- **Oma** (https://plainspell.com/en/vs/oma-vs-omega)
- **Olga** (https://plainspell.com/en/vs/olga-vs-omega)
- **Oleg** (https://plainspell.com/en/vs/oleg-vs-omega)
- **Omaha** (https://plainspell.com/en/vs/omaha-vs-omega)

## Common misspellings (6)
`moega`, `oemga`, `omeag`, `omegga`, `omgea`, `ommega`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/omega