dead on
"dead-on" is a 6-letter English headword indexed on PlainSpell.
The verdict
“dead on” is outside the top-ranked English vocabulary, used as an adjective - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 7
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Very accurate.
| Property | Value |
|---|---|
| Headword | dead on |
| Language | English |
| Part of speech | Adjective |
| Letters | 7 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “dead on” sits in English frequency
Spelling & Dictionary Insight
The English entry for dead on is 7 letters long, classified as an adjective. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. The dominant gloss from Wiktionary reads: "Very accurate.".
We couldn't generate a plausible misspelling set for dead on, since its letter pattern doesn't lend itself to common typo substitutions. No confusable counterpart is on file for this word, since no other headword is close enough in sound or shape to pair with it.
This headword's origin isn't recorded in our source data, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is dead on, spelled D-E-A-D- -O-N.
Definition
- 1Very accurate.
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 “dead on”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is D-E-A-D- -O-N - 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.