Which to use
“ex” and “exon” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,633
- “ex” frequency rank
- #49,909
- “exon” frequency rank
- 51542
- confusion score
Side-by-Side Comparison
| Feature | ex | exon |
|---|---|---|
| Definition | The name of the Latin script letter X/x. | An officer of the King's Body Guard of the Yeomen of the Guard. |
Letter map: ex vs exon
Shared letters muted; letters that set ex and exon apart highlighted. Shared run: 2.
Spelling & dictionary notes on ex vs exon
ex and exon are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 2 extra letter(s) - “ex” sits inside “exon”. Our composite confusion score for this pair is 51542, derived from the frequency rank of both members and their visual similarity.
ex is recorded at frequency rank #1,633, classified as anoun, pronounced /ɛks/. exon is at rank #49,909, tagged as anoun.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 51542, this pair ranks #164,597 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ex vs exon
Shared letters: ex. Private to "ex": -. Private to "exon": no.
"ex" · 2 letters · shape VC · "exon" · 4 letters · shape VCVC
Known mistypes of this pair
- exon ← eoxn · exno · exonn · xeon
Frequently Asked Questions
Is swapping "ex" for "exon" ever safe?
Frequency check: "ex" vs "exon" - which ranks higher?
After this comparison
Done with this confusable. These links stay specific to "ex" and "exon".
- Full dictionary entry for "ex" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "exon" - compare definitions side by side with the headword page. Word entry
- This pair ranks #164,597 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "ex" and "exon" also get mixed up with nearby pairs, the highest-scored neighbour is "Enos vs exon". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #164,597 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.