thei
"thei" is a 4-letter English headword indexed on PlainSpell.
The verdict
“thei” is uncommon English (frequency #59,074 among 27,828 “T” headwords), classed as a pronoun. The kind of spelling people second-guess.
- #59,074
- frequency rank, English
- 27,828
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Obsolete spelling of they.
| Property | Value |
|---|---|
| Headword | thei |
| Language | English |
| Part of speech | Pronoun |
| Letters | 4 |
| Frequency rank | #59,074 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “thei” sits in English frequency
Rare enough to double-check
thei is uncommon English at frequency #59,074 among 27,828 “T” headwords, classed as apronoun. Rarity is why readers land here mid-draft. Gloss: "Obsolete spelling of they.".
thei doesn't appear in our generated misspelling index, since its letter sequence doesn't invite the usual edit-distance slips. This entry stands alone in our confusable dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
No explicit etymology string is stored for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is thei, spelled T-H-E-I.
Definition
- 1Obsolete spelling of they.
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 “thei”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is T-H-E-I - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
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.