eauvsEPOConfusable pair

Which to use

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

#287
“eau” frequency rank
#49,067
“EPO” frequency rank
49354
confusion score

Side-by-Side Comparison

Feature eau EPO
Definition Liquide transparent, incolore, inodore et insipide à l’état pur, qui est le principal constituant des lacs, rivières, mers et océans. Hormone glycoprotéique, facteur de croissance des précurseurs des globules rouges dans la moelle osseuse.

Where the eye mixes eau and EPO

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

3 ch
eau
3 ch
EPO

Why the eye confuses eau with EPO

A purely visual mix-up. eau (\o\) and EPO (\ø.pe.o\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 49354, derived from the frequency rank of both members and their visual similarity.

eau is recorded at frequency rank #287, classified as anoun, pronounced \o\. EPO is at rank #49,067, tagged as anoun, pronounced \ø.pe.o\.

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 49354, this pair ranks #171,380 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of eau vs EPO

Shared letters: e. Private to "eau": au. Private to "EPO": op.

"eau" · 3 letters · shape VVV  ·  "EPO" · 3 letters · shape VCV

Frequently Asked Questions

Can "eau" and "EPO" be used interchangeably?
No. They are said differently (\o\ versus \ø.pe.o\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "eau" vs "EPO" - which ranks higher?
"eau" is the more common of the two: it sits at frequency rank #287 in our French list, against #49,067 for "EPO". 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 "eau" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "EPO" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #171,380 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "eau" and "EPO" also get mixed up with nearby pairs, the highest-scored neighbour is "ell vs EPO". Nearby pair

Confusion rank #171,380 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list