# omega

/oʊˈmeɪɡə/ (US) · /əʊmˈeɪɡɐ/ (UK)

Source: https://englishreference.com/word/omega
Updated: 2026-06-20

## Senses

### 1. Greek letter

noun · CEFR B2

the 24th and final letter of the Greek alphabet.

For teachers: the twenty-fourth and final letter of the Greek alphabet, represented as Ω (uppercase) or ω (lowercase).

- The scientist used the symbol omega to represent a specific value in the equation.
- The professor explained that the lowercase omega is frequently used in physics to represent angular velocity.

### 2. the end

noun · CEFR C1 · Literary · Formal

the very last part or the end of a series.

For teachers: the final or ultimate member of a sequence; the conclusion of a process or period.

- He described the discovery as the alpha and omega of his entire career.
- In theological contexts, the phrase 'the Alpha and the Omega' signifies the beginning and the end of all existence.

### 3. social hierarchy

noun · CEFR C2 · Slang · Informal

a person at the bottom of a social group, or someone who does not fit into traditional hierarchies.

For teachers: a person perceived as being at the lowest tier of a social hierarchy, or one who exists outside of it entirely; often contrasted with 'alpha'.

- In some online communities, people describe themselves as omegas to show they don't care about being leaders.
- The discussion focused on how the 'omega' archetype has evolved in internet subcultures to represent a rejection of traditional masculine competition.

### 4. finance

noun · CEFR C2 · Technical

a measurement used to see how much an option's price changes compared to the asset it is based on.

For teachers: the percentage change in an option's value relative to a one-percent change in the price of the underlying asset.

- The trader checked the omega of the position to understand the potential risk.
- Calculating the omega provides a more granular view of leverage than delta alone when managing a complex derivatives portfolio.

### 5. ultimate or extreme

adjective · CEFR C2 · Slang

the most extreme or highest version of something.

For teachers: denoting the ultimate, most extreme, or final degree of a quality.

- That was an omega fail that everyone will remember for years.
- The project was described as an omega-level threat in the script, indicating it could destroy the entire city.

### 6. supremely

adverb · CEFR C2 · Slang

to the highest possible degree.

For teachers: used as an intensifier to mean supremely or ultimately.

- The new game is omega hard, even for experienced players.
- The final boss was omega difficult, requiring a perfect strategy and hours of practice to defeat.

## Examples

- The omega is the final letter of the Greek alphabet.
- In many classic texts, the author uses the alpha and the omega to represent the beginning and the end.
- The physicist explained that the omega symbol is used to represent the ohm, which measures electrical resistance, as well as the angular frequency of a rotating object.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.