Edo vs ex, What's the Difference?

Which to use

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

#22,067
“Edo” frequency rank: #1,633
“ex” frequency rank: 23700
confusion score

Side-by-Side Comparison

Feature	Edo	ex
Definition	Former name of Tokyo: the capital city of Japan	The name of the Latin script letter X/x.

Where the eye mixes Edo and ex

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch

Edo

2 ch

Why the eye confuses Edo with ex

These two trip readers on the page rather than in the ear: Edo is /ˈɛdəʊ/ while ex is /ɛks/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 23700, 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/. ex is at rank #1,633, tagged as anoun, pronounced /ɛks/.

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 23700, this pair ranks #407,403 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Edo vs ex

Shared letters: e. Private to "Edo": do. Private to "ex": x.

"Edo" · 3 letters · shape VCV · "ex" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "Edo" for "ex" ever safe?

No - they are not even the same part of speech. "Edo" is a name and "ex" a noun, so a sentence built for one is usually ungrammatical with the other.

In ordinary English text, does "Edo" or "ex" show up more?

"ex" is the more common of the two: it sits at frequency rank #1,633 in our English list, against #22,067 for "Edo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

Full dictionary entry for "Edo" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "ex" - compare definitions side by side with the headword page. Word entry
This pair ranks #407,403 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"Edo" and "ex" also get mixed up with nearby pairs, the highest-scored neighbour is "Edo vs exon". Nearby pair

Confusion rank #407,403 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.