sciervssieurWhat's the difference?

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

Which to use

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

#44,177
“scier” frequency rank
#15,760
“sieur” frequency rank
59937
confusion score

Side-by-Side Comparison

Feature scier sieur
Definition Couper, fendre avec une scie. Monsieur.

Where the eye mixes scier and sieur

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
scier
5 ch
sieur

Why the eye confuses scier with sieur

These two trip readers on the page rather than in the ear: scier is \sje\ while sieur is \sjœʁ\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 59937, derived from the frequency rank of both members and their visual similarity.

scier is recorded at frequency rank #44,177, classified as averb, pronounced \sje\. sieur is at rank #15,760, tagged as anoun, pronounced \sjœʁ\.

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 59937, this pair ranks #100,353 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of scier vs sieur

Shared letters: eirs. Private to "scier": c. Private to "sieur": u.

"scier" · 5 letters · shape CCVVC  ·  "sieur" · 5 letters · shape CVVVC

Known mistypes of this pair

  • sciercsier · sccier · sceir · scierr · scire · sicer · sscier
  • sieuriseur · seiur · sieru · sieurr · siuer · ssieur

Frequently Asked Questions

Is swapping "scier" for "sieur" ever safe?
No - they are not even the same part of speech. "scier" is a verb and "sieur" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "scier" or "sieur" show up more?
"sieur" is the more common of the two: it sits at frequency rank #15,760 in our French list, against #44,177 for "scier". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "scier" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sieur" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #100,353 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "scier" and "sieur" also get mixed up with nearby pairs, the highest-scored neighbour is "scier vs soler". 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 #100,353 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