natural number
"natural-number" is a 13-letter English headword indexed on PlainSpell.
The verdict
“natural number” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 14
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A positive integer {1, 2, 3, ...}.
| Property | Value |
|---|---|
| Headword | natural number |
| Language | English |
| Part of speech | Noun |
| Letters | 14 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “natural number” sits in English frequency
Spelling & Dictionary Insight
The English entry for natural number is 14 letters long, classified as a noun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
We couldn't generate a plausible misspelling set for natural number, which points to an orthography that plays by predictable English rules. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Our source data has no etymology on file 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 natural number, spelled N-A-T-U-R-A-L- -N-U-M-B-E-R.
Definition
- 1A positive integer {1, 2, 3, ...}.
- 2A non-negative integer {0, 1, 2, ...}.
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). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “natural number”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is N-A-T-U-R-A-L- -N-U-M-B-E-R - every other letter order is a misspelling in standard orthography.
- 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.