thousandth
/ˈθaʊzən(d)θ/
"thousandth" is a 10-letter English headword indexed on PlainSpell.
The verdict
“thousandth” is uncommon English (frequency #50,271 among 3,151 “T” headwords), classed as an adjective. The kind of spelling people second-guess.
- #50,271
- frequency rank, English
- 3,151
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The ordinal numeral form of one thousand; last in order of a series of a thousand; next after the nine hundred and ninety-ninth.
Corpus desk
Index EN-thousandth · thousandth · English
thousandth · rank #50,271 · 0 variants · 0 confusables
- FREQ-RARE #50,271
- LEN-MEGA 10 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,151
- PHOTO-FINISH thoughtfulness
Nearest frequency peer: thoughtfulness (-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.
Long-tail ranks near “thousandth”
Sparse band: bars invert rank so rarer forms read shorter
- tedium
tedium
49,733 corpus weight
- Theodora
Theodora
49,732 corpus weight
- thoughtfuln…
thoughtfulness
49,731 corpus weight
- thousandth
thousandth
49,730 corpus weight
- tittle
tittle
49,727 corpus weight
- toddy
toddy
49,726 corpus weight
What this shows Long-tail view: where “thousandth” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | thousandth |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈθaʊzən(d)θ/ |
| Letters | 10 |
| Frequency rank | #50,271 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “thousandth” in English
Rare enough to double-check
thousandth is uncommon English at frequency #50,271 among 3,151 “T” headwords, classed as anadjective, transcribed /ˈθaʊzən(d)θ/. Rarity is why readers land here mid-draft. Gloss: "The ordinal numeral form of one thousand; last in order of a series of a thousand; next after the nine hundred and ninety-ninth.".
Our edit-distance generator produced no likely misspellings for thousandth, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From thousand + -th (suffix forming an ordinal number). The correct English form is thousandth, spelled T-H-O-U-S-A-N-D-T-H.
Definition
- 1The ordinal numeral form of one thousand; last in order of a series of a thousand; next after the nine hundred and ninety-ninth.
Etymology
From thousand + -th (suffix forming an ordinal number).
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "thousandth", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency rank).