Eos
/ˈiːɒs/
"eos" is a 3-letter English headword indexed on PlainSpell.
The verdict
“Eos” is a moderately-common English word, ranked #21,511 in English word frequency and used as a proper noun.
- #21,511
- frequency rank, English
- 3
- letters
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The Greek goddess of the dawn; daughter of Hyperion and Theia, sister of Helios and Selene, wife of Astraeus (god of the dusk), and mother of the four Anemoi ("Winds"), and the five Astra Planeta (...
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | Eos |
| Language | English |
| Part of speech | Proper noun |
| IPA | /ˈiːɒs/ |
| Letters | 3 |
| Frequency rank | #21,511 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “Eos” sits in English frequency
Spelling & Dictionary Insight
The English entry for Eos is 3 letters long, classified as a proper noun, and transcribed in the International Phonetic Alphabet as /ˈiːɒs/. Corpus data places it at rank #21,511 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
Eos doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. It also participates in 20 confusable-pair relationships, "ex", "et", "EU", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
Etymologically, the entry records: From Ancient Greek Ἠώς (Ēṓs, “Greek goddess of the dawn”), from ἠώς (ēṓs, “dawn, daybreak; morning; day; east”). Doublet of Aurora. The correct English form is Eos, spelled E-O-S.
Definition
- 1The Greek goddess of the dawn; daughter of Hyperion and Theia, sister of Helios and Selene, wife of Astraeus (god of the dusk), and mother of the four Anemoi ("Winds"), and the five Astra Planeta ("Wandering Stars/Planets"). Her Roman counterpart is Aurora.
- 2The dawn.
Etymology
From Ancient Greek Ἠώς (Ēṓs, “Greek goddess of the dawn”), from ἠώς (ēṓs, “dawn, daybreak; morning; day; east”). Doublet of Aurora.
This word in other languages
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
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Using “Eos”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is E-O-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˈiːɒs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “ex” - see the side-by-side comparison. Eos vs ex
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.