seenvsseoWhich spelling fits?

Quick tell: seen is a verb, seo is a noun, so they fill different roles in a sentence.

Which to use

“seen” is a verb and “seo” is a noun - they look or sound alike but fill different roles in a sentence.

#41,534
“seen” frequency rank
#13,261
“seo” frequency rank
54795
confusion score

Side-by-Side Comparison

Feature seen seo
Definition Participe passé du verbe to see. Nom fréquemment donné aux églises cathédrales dans les Pays catalans.

Where the eye mixes seen and seo

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
seen
3 ch
seo

Look-alike desk: seen vs seo

These two trip readers on the page rather than in the ear: seen is \siːn\ while seo is [ˈsew]. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 54795, derived from the frequency rank of both members and their visual similarity.

seen is recorded at frequency rank #41,534, classified as averb, pronounced \siːn\. seo is at rank #13,261, tagged as anoun, pronounced [ˈsew].

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 54795, this pair ranks #131,607 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of seen vs seo

Shared letters: es. Private to "seen": n. Private to "seo": o.

"seen" · 4 letters · shape CVVC  ·  "seo" · 3 letters · shape CVV

Known mistypes of this pair

  • seenseenn · sene · sseen

Frequently Asked Questions

Can "seen" and "seo" be used interchangeably?
No - they are not even the same part of speech. "seen" is a verb and "seo" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "seen" or "seo" show up more?
"seo" is the more common of the two: it sits at frequency rank #13,261 in our French list, against #41,534 for "seen". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "seen" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "seo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #131,607 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "seen" and "seo" also get mixed up with nearby pairs, the highest-scored neighbour is "seen vs Sepp". 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 #131,607 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