EdovsexonTell them apart

Quick tell: Edo is a name, exon is a noun, so they fill different roles in a sentence.

Which to use

“Edo” is a name and “exon” is a noun - they look or sound alike but fill different roles in a sentence.

#22,067
“Edo” frequency rank
#49,909
“exon” frequency rank
71976
confusion score

Side-by-Side Comparison

Feature Edo exon
Definition Former name of Tokyo: the capital city of Japan An officer of the King's Body Guard of the Yeomen of the Guard.

Letter map: Edo vs exon

Shared letters muted; letters that set Edo and exon apart highlighted. Shared run: 2. Edo runs 3 letters (VCV) against exon's 4 (VCVC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
Edo
4 ch
exon

Grammar separator: Edo vs exon

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Edo is aname and exonanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 71976, derived from the frequency rank of both members and their visual similarity.

Edo is recorded at frequency rank #22,067, classified as aname, pronounced /ˈɛdəʊ/. 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 71976, this pair ranks #44,675 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Edo vs exon

Shared letters: eo. Private to "Edo": d. Private to "exon": nx.

"Edo" · 3 letters · shape VCV  ·  "exon" · 4 letters · shape VCVC

Known mistypes of this pair

  • exon ← eoxn · exno · exonn · xeon

Frequently Asked Questions

Do "Edo" and "exon" mean the same thing in a sentence?
No - they are not even the same part of speech. "Edo" is a name and "exon" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "Edo" or "exon" show up more?
"Edo" is the more common of the two: it sits at frequency rank #22,067 in our English list, against #49,909 for "exon". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "Edo" and "exon".

  • Full dictionary entry for "Edo" 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 #44,675 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Edo" 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 #44,675 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list