EPOvsesaWhich spelling fits?

Which to use

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

#49,067
“EPO” frequency rank
#25,994
“esa” frequency rank
75061
confusion score

Side-by-Side Comparison

Feature EPO esa
Definition Hormone glycoprotéique, facteur de croissance des précurseurs des globules rouges dans la moelle osseuse. Essai.

Where the eye mixes EPO and esa

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. EPO and esa follow the identical consonant-vowel pattern (VCV). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
EPO
3 ch
esa

Why the eye confuses EPO with esa

A purely visual mix-up. EPO (\ø.pe.o\) and esa (\ˈesːa\) 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 75061, derived from the frequency rank of both members and their visual similarity.

EPO is recorded at frequency rank #49,067, classified as anoun, pronounced \ø.pe.o\. esa is at rank #25,994, tagged as anoun, pronounced \ˈesːa\.

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 75061, this pair ranks #35,239 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of EPO vs esa

Shared letters: e. Private to "EPO": op. Private to "esa": as.

"EPO" · 3 letters · shape VCV  ·  "esa" · 3 letters · shape VCV

Frequently Asked Questions

Do "EPO" and "esa" mean the same thing in a sentence?
No. They are said differently (\ø.pe.o\ versus \ˈesːa\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "EPO" or "esa"?
"esa" is the more common of the two: it sits at frequency rank #25,994 in our French list, against #49,067 for "EPO". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "EPO" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "esa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #35,239 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "EPO" and "esa" also get mixed up with nearby pairs, the highest-scored neighbour is "ell vs EPO". Nearby pair

Confusion rank #35,239 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