omega

/ˈəʊmɪɡə/

//ˈəʊmɪɡə// noun

"omega" is a 5-letter English headword indexed on PlainSpell.

The verdict

“omega” has 6 generated spelling variants in the English index at frequency #9,927. The variants make it a useful spelling check.

#9,927
frequency rank, English
1,431
“O” headwords
6
tracked misspellings
10
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - 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. Upperc...

Corpus desk

Index EN-omega · omega · English

omega · rank #9,927 · 6 variants · 10 confusables

  • FREQ-COMMON #9,927
  • LEN-MID 5 letters
  • VOW-3 3 vowels
  • CONFUS-MID 10 pairs
  • VAR-MID 6 variants
  • BOOK-MID 1,431
  • PHOTO-FINISH notch

Nearest frequency peer: notch (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “omega”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “omega” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

omega vs OMG
0% similar
omega vs omen
60% similar
omega vs omer
60% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for omega
PropertyValue
Headwordomega
LanguageEnglish
Part of speechNoun
IPA/ˈəʊmɪɡə/
Letters5
Frequency rank#9,927
Misspellings tracked6
Confusable pairs10
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “omega”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).omegalands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “notch” (#9,926), “onions” (#9,928), “Newport” (#9,924). Among 1,431 “O” headwords, “omega” is #9,927. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 6 spelling variants around omega (IPA /ˈəʊmɪɡə/), anoun. Corpus frequency is #9,927 among 1,431 “O” headwords. Wiktionary lists 7 senses, so context still picks the gloss.

Our generated misspelling index lists 6 likely wrong-spelling variants for omega, with forms such as "moega", "oemga", and "omeag". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 10 confusable-pair relationships, "OMG", "omen", "omer", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English, from Ancient Greek ὦ μέγα (ô méga), meaning “great ω” (omega is a long vowel in Ancient Greek). The correct English form is omega, spelled O-M-E-G-A.

Definition

  1. 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. 2
    The end; the final, last or ultimate in a sequence.
  3. 3
    Angular velocity; symbol: ω.
  4. 4
    A transfinite ordinal number referring to the next position after ordering a countably infinite set.
  5. 5
    An omega male.
  6. 6
    The percentage change in an option value divided by the percentage change in the underlying asset's price.
  7. 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.

Recorded use

Wiktionary examples

These source excerpts show how omega appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The fact that the letter was incised above the line indicates that it is probably an omega.
  2. alpha and omega

Etymology

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

Synonyms

This word in other languages

Common misspellings

Also misspelled as:

  • moega
  • oemga
  • omeag
  • omegga
  • omgea
  • ommega

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of omega - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

moega2oemga2omeag2omegga1omgea2ommega1
Edit distance from "omega"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "omega"?
"omega" is spelled O-M-E-G-A. The IPA pronunciation is /ˈəʊmɪɡə/.
What does "omega" mean?
As a noun, "omega" means: 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. Upperc...
What words are commonly confused with "omega"?
"omega" is commonly confused with "OMG", "omen", "omer". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "omega"?
The IPA (International Phonetic Alphabet) transcription for "omega" is /ˈəʊmɪɡə/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "omega"?
From Middle English, from Ancient Greek ὦ μέγα (ô méga), meaning “great ω” (omega is a long vowel in Ancient Greek). See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "omega", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (6 here; floor ≥5).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list