sieurvssuerConfusable pair

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

Which to use

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

#15,760
“sieur” frequency rank
#28,765
“suer” frequency rank
44525
confusion score

Side-by-Side Comparison

Feature sieur suer
Definition Monsieur. Transpirer, rendre de la sueur par les pores de la peau.

Where the eye mixes sieur and suer

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

5 ch
sieur
4 ch
suer

Visual trap between sieur and suer

These two trip readers on the page rather than in the ear: sieur is \sjœʁ\ while suer is \sɥe\. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 44525, derived from the frequency rank of both members and their visual similarity.

sieur is recorded at frequency rank #15,760, classified as anoun, pronounced \sjœʁ\. suer is at rank #28,765, tagged as averb, pronounced \sɥe\.

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 44525, this pair ranks #209,837 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sieur vs suer

Shared letters: ersu. Private to "sieur": i. Private to "suer": -.

"sieur" · 5 letters · shape CVVVC  ·  "suer" · 4 letters · shape CVVC

Known mistypes of this pair

  • sieuriseur · seiur · sieru · sieurr · siuer · ssieur
  • suerseur · ssuer · suerr

Frequently Asked Questions

Can "sieur" and "suer" be used interchangeably?
No - they are not even the same part of speech. "sieur" is a noun and "suer" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "sieur" or "suer" show up more?
"sieur" is the more common of the two: it sits at frequency rank #15,760 in our French list, against #28,765 for "suer". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "sieur" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "suer" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #209,837 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sieur" and "suer" also get mixed up with nearby pairs, the highest-scored neighbour is "suer vs suu". 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 #209,837 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