seinvssevenWhat's the difference?

Which to use

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

#746
“sein” frequency rank
#22,094
“seven” frequency rank
22840
confusion score

Side-by-Side Comparison

Feature sein seven
Definition Partie antérieure du thorax humain, où se trouvent les mamelles. (radiotéléphonie) Mot de code radiotéléphonique de l'OACI, OTAN et SIA pour le chiffre 7.

Where the eye mixes sein and seven

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
sein
5 ch
seven

Why the eye confuses sein with seven

A purely visual mix-up. sein (\sɛ̃\) and seven (\ˈsɛv.n\) 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 22840, derived from the frequency rank of both members and their visual similarity.

sein is recorded at frequency rank #746, classified as anoun, pronounced \sɛ̃\. seven is at rank #22,094, tagged as anoun, pronounced \ˈsɛv.n\.

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 22840, this pair ranks #355,869 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sein vs seven

Shared letters: ens. Private to "sein": i. Private to "seven": v.

"sein" · 4 letters · shape CVVC  ·  "seven" · 5 letters · shape CVCVC

Known mistypes of this pair

  • seinesin · seinn · seni · ssein
  • sevenesven · seevn · sevenn · sevne · sevven · sseven · sveen

Frequently Asked Questions

Can "sein" and "seven" be used interchangeably?
No. They are said differently (\sɛ̃\ versus \ˈsɛv.n\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "sein" or "seven" show up more?
"sein" is the more common of the two: it sits at frequency rank #746 in our French list, against #22,094 for "seven". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "sein" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "seven" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #355,869 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sein" and "seven" also get mixed up with nearby pairs, the highest-scored neighbour is "semée vs seven". 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 #355,869 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