eau vs ex, What's the Difference?

Which to use

“eau” and “ex” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#23,815
“eau” frequency rank: #1,633
“ex” frequency rank: 25448
confusion score

Side-by-Side Comparison

Feature	eau	ex
Definition	Alternative form of ea.	The name of the Latin script letter X/x.

Where the eye mixes eau and ex

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

3 ch

eau

2 ch

Visual trap between eau and ex

A purely visual mix-up. eau (/juː/) and ex (/ɛks/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 25448, derived from the frequency rank of both members and their visual similarity.

eau is recorded at frequency rank #23,815, classified as anoun, pronounced /juː/. 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 25448, this pair ranks #394,193 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of eau vs ex

Shared letters: e. Private to "eau": au. Private to "ex": x.

"eau" · 3 letters · shape VVV · "ex" · 2 letters · shape VC

Frequently Asked Questions

Do "eau" and "ex" mean the same thing in a sentence?

No. They are said differently (/juː/ versus /ɛks/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "eau" or "ex"?

"ex" is the more common of the two: it sits at frequency rank #1,633 in our English list, against #23,815 for "eau". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Eye-level mix-up between "eau" and "ex" is sorted above. Next: full entries or other pairs that share a letter shape.

Full dictionary entry for "eau" 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 #394,193 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"eau" and "ex" also get mixed up with nearby pairs, the highest-scored neighbour is "eau vs Eri". Nearby pair

Confusion rank #394,193 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.