propulseurvspropulseursWhat's the difference?

Quick tell: propulseur is a adjective, propulseurs is a noun, so they fill different roles in a sentence.

Which to use

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

#40,437
“propulseur” frequency rank
#39,953
“propulseurs” frequency rank
80390
confusion score

Side-by-Side Comparison

Feature propulseur propulseurs
Definition Qui donne un mouvement de propulsion. Pluriel de propulseur.

Same sound, different letters: propulseur vs propulseurs

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 10 letters. propulseur runs 10 letters (CCVCVCCVVC) against propulseurs's 11 (CCVCVCCVVCC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
propulseur
11 ch
propulseurs

Ear matches; page differs - propulseur and propulseurs

Say them out loud and nothing separates them: propulseur and propulseurs carry the same recorded pronunciation, \pʁɔ.pyl.sœʁ\. Grammar is what tells them apart: one is anadjective, the other anoun, so most sentences will only accept one of them. They differ by 1 extra letter(s) - “propulseur” sits inside “propulseurs”. Our composite confusion score for this pair is 80390, derived from the frequency rank of both members and their visual similarity.

propulseur is recorded at frequency rank #40,437, classified as anadj, pronounced \pʁɔ.pyl.sœʁ\. propulseurs is at rank #39,953, tagged as anoun, pronounced \pʁɔ.pyl.sœʁ\.

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 80390, this pair ranks #21,067 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of propulseur vs propulseurs

Shared letters: eloprsu. Private to "propulseur": -. Private to "propulseurs": -.

"propulseur" · 10 letters · shape CCVCVCCVVC  ·  "propulseurs" · 11 letters · shape CCVCVCCVVCC

Known mistypes of this pair

  • propulseur ← porpulseur · ppropulseur · propluseur · proppulseur · propulesur · propullseur · propulseru · propulseurr
  • propulseurs ← porpulseurs · ppropulseurs · propluseurs · proppulseurs · propulesurs · propullseurs · propulserus · propulseurrs

Frequently Asked Questions

Do "propulseur" and "propulseurs" mean the same thing in a sentence?
No - they are not even the same part of speech. "propulseur" is an adjective and "propulseurs" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "propulseur" or "propulseurs" show up more?
"propulseurs" is the more common of the two: it sits at frequency rank #39,953 in our French list, against #40,437 for "propulseur". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Sound matches; spelling doesn't. Use the exits below to lock the right form or check a cousin pair.

  • Full dictionary entry for "propulseur" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "propulseurs" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #21,067 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "propulseur" and "propulseurs" also get mixed up with nearby pairs, the highest-scored neighbour is "propulsée vs propulseur". 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 #21,067 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