Which to use
“catalyseur” is a noun and “catalyseurs” is an adjective - they look or sound alike but fill different roles in a sentence.
- #21,881
- “catalyseur” frequency rank
- #43,830
- “catalyseurs” frequency rank
- 65711
- confusion score
Side-by-Side Comparison
| Feature | catalyseur | catalyseurs |
|---|---|---|
| Definition | Agent de la catalyse ; élément favorisant, voire indispensable, à une réaction chimique ou biochimique qui n’en sort pas modifié. | Masculin pluriel de catalyseur. |
Where the spellings diverge
Shared letters are muted; the letters that actually set catalyseur and catalyseurs apart are highlighted. They share 10 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Say them out loud and nothing separates them: catalyseur and catalyseurs carry the same recorded pronunciation, \ka.ta.li.zœʁ\. Grammar is what tells them apart: one is anoun, the other anadjective, so most sentences will only accept one of them. They differ by 1 extra letter(s) - “catalyseur” sits inside “catalyseurs”. Our composite confusion score for this pair is 65711, derived from the frequency rank of both members and their visual similarity.
catalyseur is recorded at frequency rank #21,881, classified as anoun, pronounced \ka.ta.li.zœʁ\. catalyseurs is at rank #43,830, tagged as anadj, pronounced \ka.ta.li.zœʁ\.
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 65711, this pair ranks #71,099 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of catalyseur vs catalyseurs
Shared letters: acelrstuy. Private to "catalyseur": -. Private to "catalyseurs": -.
"catalyseur" · 10 letters · shape CVCVCVCVVC · "catalyseurs" · 11 letters · shape CVCVCVCVVCC
Known mistypes of this pair
- catalyseur ← actalyseur · caatlyseur · catallyseur · catalsyeur · catalyesur · catalyseru · catalyseurr · catalysseur
- catalyseurs ← actalyseurs · caatlyseurs · catallyseurs · catalsyeurs · catalyesurs · catalyserus · catalyseurrs · catalyseurss
Frequency comparison
Frequently Asked Questions
Can "catalyseur" and "catalyseurs" be used interchangeably?
Which is more common, "catalyseur" or "catalyseurs"?
Remembering catalyseur vs catalyseurs
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “catalyseur”; for an adjective, it's “catalyseurs”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “catalyseur” entry
- Browse more pairs most likely to be confused. Most confusable