either
/ˈaɪ.ðə/
"either" is a 6-letter English headword indexed on PlainSpell.
The verdict
“either” is in the everyday core of English, ranked #464 in English word frequency and used as a determiner.
- #464
- frequency rank, English
- 6
- letters
- 8
- tracked misspellings
- 8
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Any one (of two).
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 | either |
| Language | English |
| Part of speech | Determiner |
| IPA | /ˈaɪ.ðə/ |
| Letters | 6 |
| Frequency rank | #464 |
| Misspellings tracked | 8 |
| Confusable pairs | 8 |
| Source | Wiktionary (kaikki.org) |
Where “either” sits in English frequency
Spelling & Dictionary Insight
The English entry for either is 6 letters long, classified as a determiner, and transcribed in the International Phonetic Alphabet as /ˈaɪ.ðə/. Corpus data places it at rank #464 in overall English word frequency, putting it firmly in the everyday core of the language. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 8 likely wrong-spelling variants for either, with forms such as "eihter", "eitehr", and "eitherr". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 8 confusable-pair relationships, "enter", "ether", "Ethel", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From Middle English either, from Old English ǣġhwæþer, from Proto-West Germanic *aiw + *gahwaþar. Akin to Old Saxon eogihwethar, iahwethar (Low German jeed); Old Dutch *iogewether, *iowether, *iother (Dutch ieder); Old High German eogihwedar, iegihweder, ie… The correct English form is either, spelled E-I-T-H-E-R.
Definition
- 1Any one (of two).
- 2Each of two; both.
- 3Any one (of more than two).
Etymology
From Middle English either, from Old English ǣġhwæþer, from Proto-West Germanic *aiw + *gahwaþar. Akin to Old Saxon eogihwethar, iahwethar (Low German jeed); Old Dutch *iogewether, *iowether, *iother (Dutch ieder); Old High German eogihwedar, iegihweder, ieweder (German jeder).
This word in other languages
Common misspellings
Also misspelled as: eihter,eitehr,eitherr,eithher,eithre,eitther,etiher,iether
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of either - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.
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 “either”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is E-I-T-H-E-R - every other letter order is a misspelling in standard orthography.
- Say it as /ˈaɪ.ðə/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “enter” - see the side-by-side comparison. either vs enter
- 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.