seinevssereineWhich spelling fits?

Quick tell: seine is a noun, sereine is an adjective, so they fill different roles in a sentence.

Which to use

“seine” is a noun and “sereine” is an adjective - they look or sound alike but fill different roles in a sentence.

#2,058
“seine” frequency rank
#18,065
“sereine” frequency rank
20123
confusion score

Side-by-Side Comparison

Feature seine sereine
Definition Filet de pêche encerclant et traînant, mis à l’eau à partir d’une embarcation, et manœuvré soit du rivage, soit à partir du bateau lui-même. Féminin singulier de serein.

Where the eye mixes seine and sereine

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. seine runs 5 letters (CVVCV) against sereine's 7 (CVCVVCV) - the length gap alone is often enough to separate them once you know to check it.

5 ch
seine
7 ch
sereine

Why the eye confuses seine with sereine

These two trip readers on the page rather than in the ear: seine is \sɛn\ while sereine is \sə.ʁɛn\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 20123, derived from the frequency rank of both members and their visual similarity.

seine is recorded at frequency rank #2,058, classified as anoun, pronounced \sɛn\. sereine is at rank #18,065, tagged as anadj, pronounced \sə.ʁɛn\.

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 20123, this pair ranks #369,841 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of seine vs sereine

Shared letters: eins. Private to "seine": -. Private to "sereine": r.

"seine" · 5 letters · shape CVVCV  ·  "sereine" · 7 letters · shape CVCVVCV

Known mistypes of this pair

  • seine ← esine · seien · seinne · senie · siene · sseine
  • sereine ← esreine · seerine · sereien · sereinne · serenie · seriene · serreine · sreeine

Frequently Asked Questions

Can "seine" and "sereine" be used interchangeably?
No - they are not even the same part of speech. "seine" is a noun and "sereine" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "seine" or "sereine"?
"seine" is the more common of the two: it sits at frequency rank #2,058 in our French list, against #18,065 for "sereine". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "seine" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sereine" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #369,841 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "seine" and "sereine" also get mixed up with nearby pairs, the highest-scored neighbour is "Seraing vs sereine". 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 #369,841 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